Help I Have a 54 in science

Answer:

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Explanation:

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Describe some of the main geologic events occurring during the Mesozoic era. This would include formation of mountains, opening of oceans, crunching continents, volcanic activity, major deposition of sediments, major structures eroded, etc:

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What 2 major air masses lead to the tornadoes in Tornado Alley?

Researchers have been studying how emissions from both volcanoes and human activities, such as the burning of fossil fuels, impact the atmosphere. Both types of emissions contribute to the total CO2 levels in the atmosphere. Graph 2 shows that atmospheric CO2 levels have been steadily increasing over time. This increase in CO2 levels has been linked to the increase in global surface temperatures.

Explain why the total mass of carbon must be decreasing in a different step of the slow carbon cycle based on the on the increase in atmospheric CO2.

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A student at an exhibition looks at a model of Earth, as shown. The model is made using different colors to show water and land on the surface of Earth. The color green shows areas covered in land and blue shows areas covered in water. Each side of the model is shown.



The student learns that the water on Earth is stored in different forms. Water on Earth is broadly categorized into salt water and freshwater. The usability of water depends on the quantity available and its characteristics. The model shows the distribution of water on Earth in various reservoirs.

Question:The student claims there are large quantities of water immediately available for humans to drink on the surface of Earth. Is the claim given by the student correct? Use evidence from the graphs to describe why or why not.

Is the classification system of domains and kingdoms the only system that scientists have ever used to classify organisms?

Which is NOT an example of a structural adaption?
A. a pelican's pouch-like beak
B. Camouflaged seahorses
C. The migration of birds
D. dense fur on a brown bear

help me please put the names of the planets in increasing order based on their distance from the Sun.

Electricity is defined as
A flow air
B flowing atoms
C flow of electrons
D flow of water

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Do you think that humans and humpback whales share a common evolutionary lineage?

Fill in the Blank Complete the following sentence. If experiments support the existence of a new phenomenon, then the original theory may be
____________

How is the process of fertilization in animals like the process that takes place in plants?


Spores can become sperm that will fertilize the egg.


Self-fertilization is possible if no partner is available.


A sperm cell and an egg cell combine to form an embryo.


Sperm is encased in a grain of pollen to travel to an egg.

A line graph shows?

A.changes in the dependent variable only
B.changes in the dependent variable only
C. how the dependent variable changes in response to the dependent variable
D. how the dependent variable changes on its own ​

A scientist observes two stars in the night sky through a telescope. Star A is white in color and relatively dim. The star’s estimated temperature is very high.

Star B is red in color and extremely bright. The star’s temperature is low compared with other stars.

Help the scientist classify the two stars.

What are some important functions cells perform in the human body?

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A student is comparing the organelles found in the cells of a milkweed plant and in the
cells of a butterfly, using the Venn diagram shown below.

Where should the student place the terms “chloroplasts” and “mitochondria”?

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Please answer the two following questions thx!!

Does anyone know anything about rabbits?

The water cycle is also called the Hydrolic Cycle.
It is the process by which water circulates between Earth’s oceans, atmosphere, and land.
It involves the following:
Water storage
evaporation
transpiration


_________________________
_________________________

_________________________ hold 96.5% of Earth’s water.
This is the primary pathway into the water cycle.
Oceans, seas, lakes, and rivers provide _____% of the moisture in our atmosphere through evaporation.

The process by which water changes from a _________________________ to a _________________________ .
It is the primary pathway that water moved from the liquid state back into the water cycle as _________________________ .
_________________________ (energy) from the sun is necessary for evaporation to occur.
Energy _________________________ bonds that hold water molecules together.
Boiling Point: _________________________
Freezing Point: __________________________
_________________________ is the process of snow and ice changing into water vapor without first melting into water.
_________________________ is water lost to the atmosphere when the ground surface and transpiration of groundwater by plants through leaves.

Superhighway used to transport water around the globe.
Involves _________________________ and _________________________ .

The process in which water vapor in the air changed into _________________________ .
The loss of _________________________ allows water molecules to bond,
Forms _________________________ or _________________________ .

Is water released from clouds in the form of:
_________________________
_________________________
_________________________
_________________________
_________________________
Provides the delivery system of _________________________ water to the Earth.

These are examples of water locked up in its present state of matter for a relatively long period of time.
This involves _________________________ and _________________________ .

This is _________________________ that did not get absorbed into soil, or evaporate.
_________________________ and _________________________ provides runoff when they melt._________________________
Water moved by _________________________ makes its way into places that collect water.
_________________________
_________________________
_________________________
_________________________

This is the downward process of moving water from the _________________________ into soil or poros rock.
_________________________ is large amounts of water stored in the ground.
_________________________ is another name for groundwater.


This is the area of land where all the water that dallas in it and grains off of, goes into the same place.
It can be as small as a footprint or as large as all the land that drains water into the _________________________ .

In the image below, which objects would have a greater gravitational force between them, Objects A and B, or Objects B and C? Give one supporting detail for your answer.

Every compound can be represented by a chemical formula. A chemical formula is the set of symbols showing the elements that make up a compound and their proportions. Water’s chemical formula is H_2 ​2 ​​ O. That means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. A molecule is a group of two or more atoms bonded together. Molecules can range in size from two to thousands of atoms. A molecule of a compound is the smallest unit of that compound. Every molecule of water has all the physical and chemical properties of water. That’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! Which of the following is a true statement?

A
Every molecule of the same compound will have different properties.

B
Every molecule of a compound has the same proportion of elements.

C
Molecules can be physically separated into smaller units of a compound.

D
Molecules cannot be represented by chemical formulae.

Ocean water is-
A. mixture
B. compound
C. element
D. fresh water