Write the density of population in different areas of the world.

Answers

Answer 1

Here are approximate population densities for the different regions of Europe and Middle East/Africa:

Europe:

Northern Europe: 19 people per square kilometerSouthern Europe: 99 people per square kilometerEastern Europe: 18 people per square kilometerWestern Europe: 192 people per square kilometer

Middle East/Africa:

Middle East: 39 people per square kilometerNorthern Africa: 29 people per square kilometerSouthern Africa: 26 people per square kilometerHow to calculate population density?

Population density is the measure of the number of people living in a particular area, typically expressed as the number of individuals per unit of land area. To calculate population density, you need two pieces of information:

Population: the total number of people living in the area you are interested in. You can usually find this information from government census data, which is typically conducted every few years.

Land area: the total area of land in the same area you are interested in. This can also be found from government sources or maps.

Once you have both pieces of information, you can calculate population density by dividing the population by the land area. For example, if a city has a population of 100,000 people and an area of 50 square kilometers, the population density would be 2,000 people per square kilometer (100,000 / 50 = 2,000).

It's important to note that population density can vary greatly within a given area, so it's helpful to specify the specific area you are interested in, such as a city, state, or country.

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Related Questions

Give a term that describes this difference in temperature between the CBD and the rural area.​

Answers

Answer:

vnh

Explanation:


Changes to ocean currents affect how much energy is brought to a location.

Answers

Waves off the coast of the U.S. could generate 2.64 trillion kilowatt hours of electricity per year — that's about 64% of last year's total utility-scale electricity generation in the U.S. We won't need that much, but one day experts do hope that wave energy will comprise about 10-20% of our electricity mix.

what continent is located at 90 degress S, 180 W

Answers

Answer:

Antarctica

Explanation: I searched it up

________________ is a system for securing drill bits to drills

Answers

Answer:

A chuck is a system for securing drill bits to drills

Explanation:

Daes temperature in your area very from time to time?​

Answers

Answer:

This is out of my scope of expertise

Explanation:

Help me. Asap! :'(
Write a 2 stanza of poem about the relationship/ connection of man to nature.
Be sure to have four verses in each stanza. ​

Answers


Amidst the greens and blues we stand,

A part of nature's divine hand.

From mountains high to oceans wide,

We witness her beauty with pride.

The sun, the moon, the stars above,

Remind us of our humble love.

For every tree and every flower,

Is a symbol of life's sweet power.

We breathe in her essence every day,

And give back in our own small way.

With each passing season, we see,

A deeper bond, a closer

PLEASE HELP
find h in the parallelogram shown



h = __ ft

Answers

According to the question, the length of the side of the parallelogram is given as 8 ft.

What is parallelogram?

A parallelogram is a four-sided shape with opposite sides that are parallel and equal in length. Its angles are all equal and it has two pairs of parallel lines. It is a quadrilateral, meaning it has four sides. The opposite angles of a parallelogram are also equal, and the opposite sides are equal in length. The two diagonals of a parallelogram bisect each other, and the sum of the angles on each corner is 360 degrees. Parallelograms are used in everyday life to construct buildings, and they are also used in geometry to calculate the area of the shape. Additionally, parallelograms are used to calculate the moment of inertia of objects, and they can be used to calculate the area of a triangle, when one side and two of its angles are known.

The height (h) of the parallelogram can be found using the formula h = sqrt(a² - b²/2), where a is the length of the side and b is the base.

Plugging in the given values, h = sqrt(8² - 6²/2) = sqrt(64 - 18/2) = sqrt(64 - 9) = sqrt(55).

Therefore, h = approximately 7.416 ft.

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which is more dangerous, building on soft land (like soil, bay mud, or reclaimed land) or building on hard rock?

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Building on soft land is generally more dangerous than building on hard rock. Soft land often lacks the structural stability that rock provides, and so any structures built on it are more vulnerable to earthquakes, landslides, and subsidence.

Soft lands, such as soil, bay mud, or reclaimed land, can be unstable and prone to shifting, settling, and liquefaction during earthquakes or heavy rains. This can lead to foundation failure, structural damage, and even the collapse of buildings. Soft soil can also be prone to landslides, which can cause significant damage to buildings and infrastructure. In addition, building on soft land often requires more expensive foundation designs and construction techniques to ensure stability.

Additionally, it may require more extensive reinforcement and other measures to ensure the safety of any structures built on it. For these reasons, building on soft land carries a greater risk than building on hard rock.

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Which factor affecting the distribution and abundance of the açaí palm would be studied at the level of community ecology?A. Açaí palm populations are in decline in the Amazon River estuary.B. Toucans consume and disperse the seeds of açaí palms.C. Açaí palms cannot tolerate freezing temperatures.D. Açaí palms require wet soils that are occasionally flooded.

Answers

At the level of community ecology, the factor affecting the distribution and abundance of the açaí palm that would be studied is toucans consuming and dispersing the seeds of açaí palms. This is option B.

Toucans consume and disperse the seeds of açaí palms. The toucans consume the fruits of açaí palms and deposit their seeds in their droppings, which provides nutrients to the soil and aids in seed germination.

As a result, toucans play an important role in the açaí palm's survival and distribution. This mechanism is studied at the community ecology level in understanding the distribution and abundance of açaí palms.

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What should be done to lessen the damage brought about by the volcanic eruptions?​

Answers

Volcanic eruptions cause a lot of damage to the surroundings and people around the volcano. Some ways to lessen the damage include Staying inside, if possible, with windows and doors closed.

Exposure to ash can be harmful to your health, especially the respiratory (breathing) system, therefore wear long sleeves and long pants and use goggles to protect your eyes.

Having an evacuation plan is one of the best strategies to lower your risk of a volcanic eruption. This entails making sure evacuation plans are in place and that emergency shelter and food supplies are provided for.

What are volcanic eruptions and what produces them?

Since it is so hot there, certain rocks slowly melt and turn into lava, a viscous fluid. Magma rises and accumulates in magma chambers because it is lighter than the surrounding solid rock.

Some of the magma eventually surges through vents and cracks to the Earth's surface.

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Answer:

Explanation:

To lessen the damage caused by volcanic eruptions, it is important to have early warning systems that alert people about upcoming eruptions, allowing for timely evacuation. Creating hazard maps helps identify high-risk areas, guiding development away from those zones. Regular monitoring of volcanic activity provides data for predicting eruptions and initiating appropriate responses.

Building resilient infrastructure, like strong buildings and robust utility systems, can help withstand the impact of volcanic ash and lava flows. Public education and preparedness programs are essential for informing people about volcanic events and teaching them how to minimize harm to themselves and their communities.


Hope it helps!!! :)

The Paleozoic Era ended with the largest mass extinction in Earth’s history. Today, extinction of organisms is a process that continues, just not at such an overwhelming rate that it did at the end of the Paleozoic. Since extinction has happened in the past, should we worry about it now? What is one species that has recently gone extinct? State your answer and then discuss why you feel that way.

Answers

Answer:
(if you disagree with anything here, feel free to reword it)
If the process extinction is still going around since the Paleozoic era, I think it's definitely something to be cautious about. Nature is a system with many working parts, with animals being apart of lifting and helping out that system. If one important part of the system dies (all of them are important), then that part will soon affect other aspects of that system. For example, in 2020, the Splendid Poisonous Frog went extinct. The Splendid Poisonous Frog was usually used by South American-Indians primarily for hunting. If there aren't any animals to do this job as well as the frogs did, then there is no more hunting for us, and it affects the environment too. With the increase of insect population going up, these frogs also helped keep it under control, like most other frogs. No more frogs means no more keeping insect populations under control. Every species in nature has a specific function to keep everything working. If one part is taken down or destroyed by whatever means, then all the other parts will slowly suffer.

Final answer:

We should worry about extinctions as they can destabilize ecosystems and reduce biodiversity. The West African Black Rhino, which became extinct in 2011 due to poaching, is a recent example. Conservation efforts are crucial for the health of ecosystems.

Explanation:

Yes, we should be concerned about extinction. While it is a natural part of life on Earth, rapid extinctions can destabilize ecosystems and lead to the loss of biodiversity, which maintains the health of our planet. An example of a recent extinction is the West African Black Rhino, declared extinct in 2011. The extinction was largely due to excessive poaching for their valuable horns. The loss of species like the West African Black Rhino can significantly impact their habitat due to their role as a 'keystone' species and can cause a domino effect leading to the extinction of other species. Thus, conservation efforts are of paramount importance not only for the survival of individual species but also for the overall health and balance of ecosystems.

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1. Q. The northern and southern halves of the Earth are calledaxesorbitsequatorshemispheres

Answers

Answer:

The answer is hemispheres

They are called hemispheres;
We have the southern and the northern hemisphere.

Glad to help

Which of the following statements about scientists' views of global warming is true?

1. Nearly all scientists agree that the Earth's temperature is rising, but many disagree about whether humans are responsible, only a small percentage agree that humans are responsible.

2. Nearly all scientists agree that the Earth's temperature is rising and that humans are responsible, while a small percentage do not agree that humans are responsible.

3. Nearly all scientists agree that the Earth's temperature is rising, but most agree that humans are not responsible.

4. There is no consensus among scientists on this issue; they disagree over whether the Earth's temperature is rising.

Answers

The statement that is true global warming from scientist is Nearly all scientists agree that the Earth's temperature is rising, but many disagree about whether humans are responsible, only a small percentage agree that humans are responsible.

What is global warming?

Global warming is the gradual increase in the average temperature of the Earth's atmosphere and oceans, primarily caused by the release of greenhouse gases, such as carbon dioxide and methane, from human activities like burning fossil fuels, deforestation, and agriculture.

The scientific consensus is that global warming is happening and is largely driven by human activity. The consequences of global warming include rising sea levels, more frequent and severe weather events, such as hurricanes and droughts, and damage to ecosystems and biodiversity.

Therefore option 1 is correct.

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3. What is the main weakness of the Lambert Projection Map? (1 point)

OIt can only show small areas.

OIt distorts the size and position of continents.

OIt cannot represent objects such as large mountain chains and oceans.

O none of the above

anser to get brainliest

Answers

Answer: It distorts the size and position of continents.

What is air pollution?​

Answers

Air pollution refers to the contamination of the atmosphere by compounds that are dangerous to the health of people and other living things or that impair the climate or materials.

What are the causes of air pollution?

The main causes of man-made air pollution include vehicle emissions, fuel oils and natural gas used to heat homes, waste products from manufacturing and power generation, mainly from coal-fired power plants, and odors from chemical manufacturing.

The burning of fossil fuels is the biggest cause to air pollution. When fossil fuels are burned inefficiently, harmful chemicals like carbon monoxide and sulfur dioxide are discharged into the environment, polluting the air.

What is the impact of air pollution?

Heart disease, lung cancer, and breathing problems like emphysema are some long-term health repercussions of air pollution. Moreover, long-term exposure to air pollution can harm a person's nerves, brain, kidneys, liver, and other organs. Several scientists think that birth abnormalities are caused by air pollution.

Many ways exist for air pollution to harm trees and crops. Ground-level ozone can result in lower agricultural crop and commercial forest yields, slower tree seedling growth and survival, and more vulnerable plants to disease, pests, and other environmental pressures.

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Base on document D, what is your answer to the DBQ question? "Was the one-child policy a good idea?"

Answers

Answer:

It was originally a good idea but worked a bit too well.

Explanation:

When it was first implemented, its main aim was to reduce population size and population growth and it achieved its aim. In 1960 the total fertility rate was 5.6 per woman which was well above the world average of 2.1. This slowed the rate of natural growth considerably. However, the One Child policy sparked quite a bit of backslash due to the way it was  implemented. Forced sterilization and other humanitarian concerns started to open peoples eyes to the horror of the One Child policy. In 2016, the Chinese government relaxed the law extending it to two children instead of one due to the fear that labour was decreasing sharply.

Which of the following types of chores are best to bring money to the local south east Asia communities

Answers

3. Bοth A and B, Bοth selling handmade gοοds and prοviding services are excellent ways tο bring mοney tο lοcal Sοuth East Asian cοmmunities.

What is sell?  

Sell is the prοcess οf exchanging gοοds οr services fοr mοney. It is the primary way that businesses generate revenue and is a key part οf the ecοnοmy. By selling prοducts and services, businesses can earn prοfits that can be reinvested back intο their οperatiοns. Selling alsο allοws cοnsumers tο access gοοds and services that they need οr want. Selling is a fundamental part οf the business cycle, and it is used tο distribute gοοds and services frοm prοducers tο cοnsumers.

Selling handmade gοοds such as jewelry, clοthing, and crafts prοvides a great sοurce οf incοme fοr lοcal artisans and allοws them tο shοwcase their culture and skills tο the larger wοrld. Prοviding services such as tutοring, massage therapy, οr childcare can alsο help bring mοney tο the lοcal cοmmunity, as these services prοvide valuable services tο thοse in need while alsο helping tο suppοrt the lοcal ecοnοmy.

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Complete question:

Which of the following types of chores are best to bring money to the local south east Asia communities?

Selling handmade goodsProviding servicesBoth A and BNone

ap environmental science based on the diagram, which of the following statements best explains why the climate of the west coast of africa is drier than that of the east coast of the united states, even though they are located at similar northern latitudes? responses

Answers

Based on the diagram, the main reason why the climate of the west coast of Africa is drier than that of the east coast of the United States is because of the direction of the prevailing winds.

The diagram shows that the prevailing winds at the latitude of the west coast of Africa blow from the east, while the prevailing winds at the latitude of the east coast of the United States blow from the west. This means that the winds blowing towards the west coast of Africa are coming from the dry interior of the continent, while the winds blowing towards the east coast of the United States are coming from the relatively moist Atlantic Ocean. As a result, the west coast of Africa receives much less precipitation than the east coast of the United States, leading to a drier climate.
In addition, the diagram also shows that the west coast of Africa is located in the subtropical high pressure zone, which is characterized by sinking air and dry conditions. This further contributes to the dry climate of the west coast of Africa.

Overall, the combination of the direction of the prevailing winds and the location of the subtropical high pressure zone are the main factors that explain why the climate of the west coast of Africa is drier than that of the east coast of the United States, even though they are located at similar northern latitudes.

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If a geostationary satellite is seen over Texas at lunchtime, which state will it appear to be over at dusk?

Answers

Answer:

It Would be Texas be it says Stationary which means it Stays in the same place so 100% correct Promise

Explanation:

The industrialization of a country's economy often has which of the following large-scale effects on a country's demographic patterns

Answers

The large-scale effects on a country's demographic patterns d. Mechanized farming replaces many labor-intensive jobs, inducing people to move to new industrial and urban areas. Over time, the country's birth rate decreases as the country industrializes.

Over time, the country's birth rate may decrease as the country industrializes. This can be attributed to several factors. Firstly, with increased access to education and employment opportunities, especially for women, there is often a shift in family planning and priorities. Secondly, urban living generally results in higher living costs, making it more challenging for families to support larger numbers of children. Lastly, improved access to healthcare and family planning resources in urban areas contributes to a decline in birth rates.

While industrialization may not directly increase the death rate, it can lead to changes in the types of jobs available and working conditions. For instance, new industrial jobs could pose risks due to hazardous working environments or long hours, potentially affecting overall health and wellbeing. However, improvements in healthcare and living standards associated with industrialization could also contribute to a decrease in death rates over time.

In summary, industrialization typically results in demographic shifts, including migration from rural to urban areas and a decrease in birth rates as the country develops. The impact on death rates may vary depending on multiple factors, such as working conditions and access to healthcare. Therefore, the correct option is D.

The question was incomplete, Find the full content below:

The industrialization of a country's economy often has which of the following large-scale effects on a country's demographic patterns

a. People migrate from the cities into rural areas seeking new jobs in the primary sector. This migration leads to a decrease in death rate for the country.

b. Individuals migrate to new industrial or urban areas in search of jobs. Over time the death rate increases for the country because of the high risk jobs.

c. Families migrate to cities seeking jobs in the secondary sector and because of the increased wages, birth rate increases for the country.

d. Mechanized farming replaces many labor-intensive jobs, inducing people to move to new industrial and urban areas. Over time, the country's birth rate decreases as the country industrializes.

e. Industrialization has very little effect on the migration of a country's population but does have the dramatic effect of increasing the death rate.

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The statement "Washington DC is in between Maryland and Virginia about 225 miles south of New York City" is a good example of:

Place

Movement

Relative location

Absolute location

Answers

The statement "Washington DC is in between Maryland and Virginia about 225 miles south of New York City" is a good example of a Relative location.

Washington, D.C., D.C. in full District of Columbia, city and capital of the United Provinces of America. It is coextensive with the District of Columbia (the city is often referred to as essentially D.C.) and is located on the northern shore of the Potomac River at the river's route head — that is, the parcel point among stream and land transport. The province of Maryland borders the District of Columbia toward the north, east, and west and the territory of Virginia borders the District on the southern shore of the Potomac River.

In 1790 the U.S. Congress established a 100-square-mile (260-square-km) region to act as the super durable seat of the federal government. (The region was subsequently named the District of Columbia, inside which the city of Washington was constructed.)

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write two advantages and a disadvantages of the following:
1) Saduf system
2) Charsa System
3) Persian Wheel
4) Karez System
5) Inundation canals
6) Tank Irrigation

Answers

Each irrigation system has its own benefits and drawbacks. There are many different irrigation systems.

What are the characteristics of each one of them?

1. Water is taken from a well, river, or canal using a bucket that is tied to a pole on one side and a weight on the other in the shaduf system.

2. Charsa: To draw water from the well, charsa uses animal strength. Many farmers no longer employ the charsa system.

3. The third irrigation method is the Persian wheel, which covers considerably greater regions and provides a constant flow of water.

4. Karez: In the foothills, karez are horizontal underground canals that transport water from below the surface. Several kilometres may be covered by the underground canals.

5. Inundation canals: Long canals that branch off of significant rivers are referred to as inundation canals. When the river is high enough and particularly during a flood, they receive water.

6.Tank irrigation is a technique that involves building mud banks across streams to create a tiny reservoir that collects extra water during the rainy season.

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I need answers ASAP due in 15 minutes please and thank you. 1. Explain the meaning of the term comparative advantage and what it means to India.

Answers

Comparative advantage refers to a country or individual's ability to produce goods or services at a lower opportunity cost than others. India has a comparative advantage in several industries, including IT, pharmaceuticals, textiles, and agriculture due to its skilled labor and lower labor costs. This has helped India become a major player in the global economy and attract foreign investment.

Mention 4 Characteristics of West Indonesia Fauna!

Answers

Explanation:

1. Biodiversity: West Indonesia has a rich variety of animal species that are unique to the region.

2. Endemic species: West Indonesia is home to many endemic species that are not found anywhere else in the world.

3. Adaptability: West Indonesia fauna has the ability to adapt to various ecosystems, ranging from rainforests to vast savannas.

4. Threatened species: Many of the West Indonesia fauna species are currently facing threats to their survival, such as habitat destruction, climate change, and poaching.

Hopes this helps

Which of these is located at 15'N,15'W
Nigeria
Kenya
Tanzania

Answers

Answer:

Nigeria

Explanation:

While the location isn't exactly in Nigeria, Nigeria is the closest option.

None of these countries,
But the closest answer to this question is possibly Nigeria

Help with this please (for economics)

Answers

Answer:

Option C market economy

which is the best definition of glacial snow line? which is the best definition of glacial snow line? the line dividing zones of accumulation and melting of ice at the surface of a glacier the line of latitude dividing zones of melting snow and zones of glacial snow the line dividing zones of snow and zones of rock at the base of a glacier the line of latitude dividing zones of snowfall and zones of glacial ice formation

Answers

The glacial snow line is the line dividing zones of accumulation and melting of ice at the surface of a glacier.

This line is typically found at an altitude of approximately 3,000 meters in tropical regions, increasing to around 4,000 meters in temperate regions and 5,000 meters in polar regions.

The snow line is determined by the climate, the angle of the mountain slope, and the amount of sunlight reaching the glacier. Above the snow line, snow accumulates on the glacier and contributes to its growth.

Below the snow line, the snow melts and contributes to the glacier's retreat.

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Which of the following explains the spatial relationship between intensive and
extensive commercial agricultural practices using bid-rent theory?
A. Intensive commercial agricultural practices are located on land that is more
fertile than land used for extensive commercial agricultural practices.
B. Intensive agricultural practices are always based on subsistence, and extensive
agricultural practices are always based on commercialization.
C. The global distribution of commercial agricultural practices does not show a
spatial relationship based on bid-rent theory because farmers do not rent out
their land.
D. Intensive commercial agricultural practices are located close to market, where
land is expensive, and extensive commercial agricultural practices are located a
far distance from market, where land is less expensive.
E. All commercial agricultural practices are based on large expanses of land, and
farmers are required to submit bids to the local government to acquire the land
nearest the market.

Answers

D. Intensive commercial agricultural practices are located close to market, where land is expensive, and extensive commercial agricultural practices are located a far distance from market, where land is less expensive.

Answer:

C. The global distribution of commercial agricultural practices does not show a

spatial relationship based on bid-rent theory because farmers do not rent out

their land.

which african river runs into medtiteranen sea

Answers

The African river that runs into the Mediterranean Sea is the Nile River.

Jessica looks at the picture of the Grand Canyon shown below.

a large canyon with a river running through the bottom

She wants to make a model to show how the Grand Canyon was formed. What would be the best way for Jessica to do this

Answers

To create the model to show the way that the grand Canyon was formed, Jessica would have to start by gathering materials

How Jessica would create the model

One way for Jessica to make a model of how the Grand Canyon was formed is to use a combination of materials and techniques. Here are some steps she can follow:

Gather materials: Jessica can use a variety of materials to create her model, such as clay, sand, gravel, and rocks. She can also use a container or a tray to hold her materials.

Create the base layer: Jessica can start by creating the base layer, which represents the layer of rock that the Colorado River flowed over millions of years ago. She can use clay or sand to create a flat layer at the bottom of the container.

Add layers of rock: Jessica can then add layers of different types of rocks, representing the different rock layers that make up the canyon walls. She can use different colored clay or gravel to represent different types of rocks.

Add the river: Jessica can create the Colorado River by using blue-colored clay or water. She can shape it to follow the contours of the base layer and the layers of rock.

Erode the rocks: Jessica can then use a tool, such as a toothpick or a small brush, to create erosion patterns in the layers of rock. She can also add small rocks or gravel to represent boulders that were carried downstream by the river.

Add finishing touches: Jessica can add details to her model, such as plants or animals that are found in the Grand Canyon, to make it more realistic.

Overall, creating a model of the Grand Canyon can be a fun and educational activity, allowing Jessica to understand better how natural processes like erosion and deposition can shape the Earth's landscape over millions of years.

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Which of the following best exemplifies structural unemployment?A college graduate is looking for her first job.An unemployed electrician does odd jobs for cash on the weekends.A surveyor was laid off when his company relocated to the Midwest.A real estate agent is looking for a new brokerage that pays better commissions.A high school student who worked part-time at Chick-Fil-A was laid off when sales fell. In how many years will the population of Schuhlsville double? 250,000 inhabitants, last year there were 12,000 new children born and 10,000 people recorded deceased Find the area of the shaded portion in the equilateral triangle with sides 6. (assuming the central point of each arc is its corresponding vertex) Sarah bought a pair of shoes at a sale of 20%. If the amound she paid was php 1000, find the mark price What is (-6) less than 0 Need help with this for a science project What do Jovie, Micheal, and Buddy need to do to help Santa? Why? StateSingle-Earner2-Person3-Person4-PersonFlorida$41,226$52,259$58,574$69,009Georgia$40,691$55,258$61,104$68,502Missouri$39,645$51,568$60,371$71,059Texas$38,940$55,859$59,222$66,381Virginia$48,362$65,122$74,151$85,939A couple has two children. They live in Virginia and have a combined annual income of $86,000. The couple has a mortgage, a car loan, student loans, and credit card debt. When one of them loses their job, their monthly income is reduced by $3,300. If they felt the need to file for bankruptcy, which of the following statements is true?Hint: find the monthly payment. Then find out by what amount it will be reduced if one of them loses their job. Will their income be below the state requirement based on the number of persons (couple and children included)?a.They could file for Chapter 7 bankruptcy and discharge all of their debt.b.They could file for Chapter 7 bankruptcy and discharge most of their debt.c.They could file for Chapter 13 bankruptcy and discharge all of their debt.d.They could file for Chapter 13 bankruptcy and discharge some of their debt.Please select the best answer from the choices provided. What were three main reasons that pushed the Americans to the war of 1812? ECOLOGY: DDT is an insecticide that has been used by farmers. It decays slowly and it is sometimes absorbed by plants that animals and humans eat. DDT absorbed in the mud at the bottom of a lake is degraded into harmless products by bacterial action. Experimental data shows that 10% of the initial amount is eliminated in 5 years(so what would remain?) a) Find the value of k in the decay formula: y = ae-kt (Pert with different letters) b) How much of the original amount of DDT is left after 10 years?c) The U.S. Environmental Protection Agency banned almost all use of DDT in the U.S. in 1972. If none has been used near the lake since then, in what year will the concentration of DDT fall below 25%? A construction company must set up a temporary office building at a construction site. Two alternate schemes are proposed for heating this building. "Bottled gas" can be used for floor type furnaces, or electric radiant panels can be installed in the walls and ceiling. It is estimated that the building will be used for 5 years before being dismantled.The gas installation will require an investment of$3,200. It is believed its net realizable value will be zero at the end of the 5 years. The estimated annual fuel and maintenance cost is $800.The electric radiant panel installation will require an investment of $4,600; it has an estimated salvage value of $1,000. Estimated annual energy and maintenance cost is $500. Choice of the electric installation will cause an estimated extra payment for income taxes of $110 a year.Compare the present worth's of the costs of these two alternatives using an interest of 10%. What are the different types of massage therapies called?petrissagesModalitiesedemasmeridians should people be able to profit from their own cells? Need help ASAPIn this discussion, you will discuss whether you believe the Electoral College is an impediment to democracy. Over the course of this lesson, you learned what the Electoral College is, how it selects the President, delegates, winner-take-all elections, and instances where the Electoral College chose a winner who did not obtain the popular vote.Based on what you learned today, you must answer this discussion prompt in at least three paragraphs: Does the Electoral College help or hurt democracy in the United States? If so, what changes should take place in our voting system? If not, what do critics have wrong about the Electoral College? If you invest $400 today in a savings account paying 8 percentinterest per year, how much will you have in the account at the endof three years if the interest is compounded annually?a. $325b. $1,299c. $6 PLEASE HELP ME HERE I NEE A VALID ANSWER If the gyration of the outer perimiter of other galaxies are in a spiral elipse what would the probility of the tangent of collisions many bacteria that were originally classified in the genus streptococcus are now placed into two new genera, enterococcus and lactococcus. group startstrue or falsetrue, unselectedfalse I need help with this question please and thank you What is the primary way in which recycling helps reduce pollution? A. It reduces the number of trips a household needs to make to the store by reducing the need to buy new items. B. It saves raw materials and conserves natural resources by reducing the need to produce items from new resources. C. It saves money that we can invest in the environment because it reduces the number of new items we need.