Carbon Cycle

Front

Humans burn fossil fuels and wood, releasing carbon dioxide into the atmosphere. This carbon dioxide is then absorbed by trees for photosynthesis. These processes are contributory to which chemical cycle?

Back

The carbon cycle

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

How does the human body return carbon to the atmosphere in the carbon cycle?

Back

Cellular respiration

Tags

NGSS.MS-LS1-7

Front

In the carbon cycle, animals can release carbon back into the cycle through __________ or through __________.

Back

respiration . . . decomposition

Tags

NGSS.MS-LS2-3

Front

Example of human impact on the carbon cycle:

• The increased production of methane gases from cattle farms
• The burning of fossil fuels
• The cutting down of trees for lumber
• Driving automobiles
• All of the above

Back

All of the above

Tags

NGSS.MS-ESS3-4

Front

If a forest fire occurs, what will happen to the carbon in the forest?

Back

It will go into the atmosphere

Tags

NGSS.MS-LS2-3

Front

How do organisms (living things) move carbon through the carbon cycle?

Back

Respiration, decomposition, sedimentation, and photosynthesis

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What kind of organism takes out the most carbon from the atmosphere? Options: Plants, Bacteria, Animals, Humans

Back

Plants

Tags

NGSS.MS-LS1-6

Front

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide. Options: Water, Atmosphere, Sun, Air

Back

Atmosphere

Front

Organisms that do not decompose can be buried and become what?

Back

fossil fuels

Front

If the plant population decreased, the amount of carbon would _________. Options: Stay the same, Increase, Decrease

Back

Increase

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4