Coal, oil, peat, and natural gas are all examples of...

Materials that store carbon long-term

The diagram shows a model that Peter made of the carbon cycle. Which mistake did Peter make in the model?

Animals do not breathe carbon dioxide from the atmosphere.

Plants do not lose carbon through respiration.

The burning of fossil fuel does not release carbon.

Organisms that decay do not deposit carbon in the soil.

Producers, consumers, and decomposers work together to conserve the carbon on Earth. Which statement is the correct model of the carbon cycle?

Producers use carbon to make food, consumers take in carbon from the organisms they eat, and decomposers break down remains and release carbon.

Producers produce carbon from the sun, consumers consume carbon from the organisms they eat, and decomposers break down remains and release carbon.

Producers make organisms that produce carbon, consumers eat and release the carbon from their food, and decomposers make carbon from the producers.

Producers take the carbon from carbon dioxide in the air, while consumers and decomposers use carbon to produce carbon-containing molecules like sugars.

How does carbon dioxide enter the atmosphere?

Carbon dioxide is released into the atmosphere by plants, animals, bacterial decomposers, and human activities.

Carbon dioxide is only released into the atmosphere by human activities.

Carbon dioxide is only released into the atmosphere by animals and bacterial decomposers.

Carbon dioxide is only released into the atmosphere by plants, animals, and bacterial decomposers.

A student is drawing a model of the carbon cycle. Which caption should he include to explain how herbivores contribute to the carbon cycle from the food they eat?

Herbivores eat plants, producing carbon dioxide during cellular respiration that is released into the atmosphere.

Herbivores eat plants, producing carbon dioxide during photosynthesis that is released into the atmosphere.

Herbivores use carbon dioxide from the atmosphere to produce oxygen during cellular respiration.

Herbivores use oxygen from the atmosphere to produce carbon dioxide during photosynthesis.

Which statement about the carbon cycle is most true?

Carbon changes form, but the total amount on Earth remains the same.

Energy is destroyed when organic matter decays.

The total mass of carbon on Earth is always increasing.

Carbon is lost from the cycle when it enters the atmosphere.

Which of the following statements is most accurate?

A specific and limited amount of carbon exists on Earth, and it moves through living and nonliving materials through the carbon cycle.

The amount of carbon in the universe cycles, gradually increasing as it moves up the food chain, and decreasing until the next phase of the cycle.

Carbon flows through the food chain as animals eat it, then decomposes and is permanently removed from the system when the food chain is complete.

Carbon enters Earth's atmosphere when animals exhale, then moves into space where its amount steadily increases, and finally moves back into Earth's atmosphere to be used again.

What happens to light energy from the Sun when it reaches the surface of Earth?

The light energy is transformed to chemical energy by photosynthesis.

The light energy is multiplied when it reaches the plants on Earth.

The light energy is destroyed when plants are eaten by herbivores.

The light energy is converted to potential energy by cellular respiration.

In the carbon cycle, what role do decomposers play in the ecosystem?

They break down dead organisms, releasing carbon back into the atmosphere

They convert carbon dioxide into oxygen

They absorb carbon dioxide for photosynthesis

They store carbon in fossil fuels

How does deforestation impact the carbon cycle?

It increases the amount of carbon dioxide in the atmosphere

It increases the amount of carbon stored in trees

It decreases the amount of carbon dioxide in the atmosphere

It has no impact on the carbon cycle

Carbon Cycle

Quiz

•

Science

•

9th Grade

•

Practice Problem

•

Hard

•

NGSS

MS-LS2-3, MS-LS1-6, MS-ESS2-3

+3

Standards-aligned

Lisa Thompson

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Carbon can be found in...

The atmosphere

Soil

Fossil fuels

All of the above

Tags

NGSS.MS-LS2-3

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Which of the following removes carbon from the atmosphere?

Combustion

Respiration

Photosynthesis

Death

Tags

NGSS.MS-LS1-6

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

When humans EXHALE, we release __________________.

Oxygen

Carbon Dioxide

Nitrogen

Water

4.

MULTIPLE SELECT QUESTION

1 min • 1 pt

According to the diagram, what are the reservoirs of carbon? (Select more than one...)

Oceans

Vegetation, Soil, & Rock

Fossil Fuels (underground)

Atmosphere

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.

True

False

Tags

NGSS.MS-LS2-3

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The diagram shows the flow of organic molecules through an ecosystem. What process is identified by the label Y?

Combustion

Decomposition

Photosynthesis

Cellular Respiration

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If decomposition did not occur, what would happen?

Carbon would not be recycled into the atmosphere

Carbon would be locked in the waste and dead matter, leaving less and less CO₂ for photosynthesis

Wastes and dead organisms would pile up

All of these answers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

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Carbon Cycle

25 questions

Carbon can be found in...

Which of the following removes carbon from the atmosphere?

When humans EXHALE, we release __________________.

According to the diagram, what are the reservoirs of carbon? (Select more than one...)

or FALSE? All of the carbon in existence is continually recycled in the carbon cycle.

The diagram shows the flow of organic molecules through an ecosystem. What process is identified by the label Y?

If decomposition did not occur, what would happen?

Coal, oil, peat, and natural gas are all examples of...

Which of the following processes decreases the amount of carbon dioxide in the atmosphere?

Photosynthesis

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or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.