Select the Independent, Dependent and Controlled Variables

Refer to the attachment

Copper(II) sulfate in its purest form is white. Because it is devoid of water, it is also known as anhydrous copper(II) sulfate. A sample of copper(II) sulfate becomes blue when water is present.

• Temperature measurements

Temperature testing aids in determining the pace of biochemical reactions in an aquatic environment, as well as whether they can occur at all. If the water temperature is too high, the water's ability to contain oxygen is reduced, and organisms' ability to withstand certain contaminants is reduced.

• Checking the pH level

This instrument determines the acidity of water. The majority of aquatic species can only thrive in a pH range of 6 to 8.

• Test for chloride

Chloride may be found in both fresh and salt water. Mineral dissolution and industrial pollutants, on the other hand, can worsen its levels.

•  Testing for salinity

The total amount of non-carbonate salts dissolved in water is calculated. The salinity of your groundwater can tell you how salty your topsoil will become as the water table rises.

• Oxygen Dissolved Test

The amount of oxygen dissolved in water is measured with this device. Aquatic life can't conduct cellular respiration without it, hence it's an important indication of water quality.

•  Test for turbidity

Measures the quantity of suspended particle matter in the water, or, to put it another way, how clear the water is. When there is a lot of turbidity in the water, photosynthesis suffers because light can't get through, which raises the water temperature.

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Answer:

c

Explanation:

The number of jobs in renewable energy worldwide increased in 2020, despite the huge economic disruptions caused by the pandemic, with the growing industry holding up better than fossil fuels. so which means reasourses are limited because of the pandemic and prises on thing rising.

Answer:

c (There are limited natural resources that we need to maximize usage of)

Answer:

No it will not

Explanation:

It will not float because the density is 1.21903052065, it needs to be less than 1 to float

Answer:

When a gas is heated, the molecules move faster, bump into each other, and spread apart. Because the molecules are spread apart, they take up more space. They are less dense.

Answer:

A

Explanation:

Sea breeze   because the warm land air rises and the cool sea air come in

Answer:

here you go

Explanation:

Answer:

Fire's basic combustion equation is: fuel + oxygen —> carbon dioxide + water, a line many of us had drummed into us by school teachers. However, combustion reactions do not proceed directly from oxygen to carbon dioxide.

Explanation:

Fire's basic combustion equation is: fuel + oxygen —> carbon dioxide + water, a line many of us had drummed into us by school teachers. However, combustion reactions do not proceed directly from oxygen to carbon dioxide.

The equation for luminous flame assuming the laboratory gas is butane is fuel + oxygen → [tex]CO_{2} + H_{2}O[/tex].

Natural gas, the source of butane, would be a colorless, odorless, but also shapeless gas by nature. This kind of gas is extremely prevalent throughout the world and seems to be comparatively cheap to mine as well as produce.

A burning flame that is clearly seen would be called a luminous flame.

When fuel is reacted with oxygen gas then it will form carbon dioxide and water. It can be written as:

fuel + oxygen → [tex]CO_{2} + H_{2}O[/tex].

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Answer:

suspension

Explanation:

a mixture in which particles can be seen and easily separated by settling or filtration.

hope this helps

Answer:

Heterogeneous

Explanation:

The difference between Homogeneous and Heterogeneous mixtures are homogeneous are blended evenly and inseparable like soup, while heterogenous are like salads, you can take it apart

Answer:

The terrarium model shows the many different aspects of life. The dirt shows the geosphere, which is the ground thaat the plant can grow in. The biosphere is represented by the plant growing, and the hydrosphere is the water that you use to water the plant, and the condensation that will gather on the lid. The atmosphere is the air inside the jar.

Explanation:

Each of the above show how the environment works.

Answer:

☞rock cycle

=> The rock cycle is a basic concept in geology that describes transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. Each rock type is altered when it is forced out of its equilibrium conditions.

=> There are three main kinds of rocks: igneous rock, metamorphic rock, and sedimentary rock. ... It can erode into sediment or melt into magma. It is formed under extreme pressure and temperature deep inside mountain chains.

Explanation:

Answer:

Answer down below

Explanation:

if it has to be 2 of these I think it would be A and B but if it is only one Answer it would be B

Crowding and food quality are two environmental issues of restaurants.

Environmental issues are defined as harmful effects to Earth and its natural systems due to the actions of humans.

The food supply chain and restaurant customer experience generate a lot of waste – from food waste to plastic waste, and more. Unfortunately, one-third of the world's food gets wasted. This waste alone amounts to 8% of the world's greenhouse gas emissions.

Hence, option B is correct.

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Answer:

People should fund the nations space program. People have a insatiable curiosity about space. "Curiosity inspired Galileo's work." The Space Program has made vital changes in science and technology. "We have GPS devices and "memory foam" and have learned about Earth."

Explanation:

I actually am just learning about this so I took this from an assignment I did in class and at the teachers table. I could give you the passage if you'd like.

Answer:

True

Explanation:

Answer:

A. Provide both heat and power to homes

Answer:

Biomas is the answer

I am sure about it

just go for it

Answer:

D. recycling aluminum cans and glass bottles

Explanation:

it's the only one that makes sense because if its a short trip you should walk, you should use reusable bags, and turn off the water while brushing your teeth.

Hope this helps and have a wonderful day/night/afternoon

Answer:

d. recycling aluminum cans and bottles....

Explanation:

this helps to conserve the materials needed to make those objects, which can then be used to make something else...

Hope this helps!

-heyo

A conservation scientist is one who manage improve, and protect natural resources to maximize their use without damaging the environment. The correct option is C.

A scientist is defined as a person who always studies systematically and uses research and evidence to prepare hypotheses. A conservation scientist is the person who protects, manages and improves the natural resources.

It is the conservation scientist who supervise the forest and give instructions to the workers and technicians who do the labour work for maintaining the forest. They also analyze the data on forest and soil quality and notice any damage to trees caused by fires.

The conservation scientist is also involved in choosing and preparing sites to plant new trees and it is their duty to remove the timber with minimum environmental damage. They also participate in the suppression of the forest fire.

Thus the correct option is C.

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Answer:t of orbit, or all orbit successfully. You will record this information and each planet's orbit in your data table for each trial. If the mass of the sun is 1x, planets will fall into the habitable zone if I place a planet in orbits (Orbit=1,2,3,4,5,6,7,8), and all planets will orbit the sun successfully.

If the mass of the sun is 2x, planets will fall into the habitable zone if I place a planet in orbits (Orbit=1,2,3,4,5,6,7,8), and all planets will orbit the sun successfully.

If the mass of the sun is 3x, planets will fall into the habitable zo

Explanation:

Answer:

C. Crude oil is found below natural gas reservoirs.

Explanation:

:)

Answer:

Crude oil is found below natural gas

Explanation:

Answer:

What do YOU think?

Explanation:

This question is asking for an opinion. The word should is included.

Answer

To Be Honest I don't even know myself but can u help me please

Explanation:

Please someone help my on my question

Explanation:

They are related by the the density triangle.

Explanation:

They are related by the the density triangle.

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d =

m

V

m = d×V

V =

m

d

DENSITY

Density is defined as mass per unit volume.

d =

m

V

Example:

A brick of salt measuring 10.0 cm x 10.0 cm x 2.00 cm has a mass of 433 g. What is its density?

Step 1: Calculate the volume

V = lwh = 10.0 cm × 10.0 cm × 2.00 cm = 200 cm³

Step 2: Calculate the density

d =

m

V

=

433

g

200

c

m

³

= 2.16 g/cm³

MASS

d =

m

V

We can rearrange this to get the expression for the mass.

m = d×V

Example:

If 500 mL of a liquid has a density of 1.11 g/mL, what is its mass?

m = d×V = 500 mL ×

1.11

g

1

m

L

= 555 g

VOLUME

d =

m

V

We can rearrange this to get the expression for the volume.

V =

m

d

Example:

What is the volume of a bar of gold that has a mass of 14.83 kg. The density of gold is 19.32 g/cm³.

Step 1: Convert kilograms to grams.

14.83 kg ×

1000

g

1

k

g

= 14 830 g

Step 2: Calculate the volume.

V =

m

d

= 14 830 g ×

1

c

m

³

19.32

g

= 767.6 cm³

Answer:

Air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.

Answer:

12 grams

Explanation:

D = m/V

0.5g/[tex]cm^3[/tex] = m/(2*3*4)

[tex]\frac{0.5g}{cm^3} = \frac{m}{24cm^3}[/tex]

m = 12g

Answer:

Chemical reactions that take place inside living things are called biochemical reactions. Explanation:The sum of all the biochemical reactions in an organism is referred to as metabolism. Metabolism includes both exothermic (heat-releasing) chemical reactions and endothermic (heat-absorbing) chemical reactions.

Answer:

8.3ml

Explanation:

to get volume u have to divide 25g over the density, i rounded to the nearest tenth, if you don't want to then write out the full number with all the decimals