carbon cycle

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.

• Water
• Atmosphere
• Sun
• Air

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

What does not produce carbon dioxide?

• Photosynthesis
• Burning Fossil Fuels
• Animal respiration
• Plants decaying

Tags

NGSS.MS-LS1-6

All of the carbon in existence is continually recycled in the carbon cycle

• True
• False

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NGSS.MS-ESS2-1

NGSS.MS-LS2-3

Which of the following removes carbon from the atmosphere?

• Combustion
• Respiration
• Photosynthesis
• Death

Tags

NGSS.MS-LS1-6

If the plant population decreased, the amount of carbon would _________.

• Stay the same
• Increase
• Decrease

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which is a true statement?

• Humans depend on oxygen, plants depend on carbon dioxide

• Plants produce carbon dioxide

• Humans depend on carbon dioxide, plants depend on oxygen

• Humans don't depend on plants for the air they need

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Combustion is another word for __________.

• Transportation
• Respiration
• Fossil Fuels
• Burning

Carbon can be found in...

• The atmosphere
• Soil
• Fossil fuels
• All of the above

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Respiration is the process by which animals take in _____ and release _____. 

• photosynthesis, air
• carbon, oxygen
• oxygen
• oxygen, carbon dioxide

What process does the purple arrow indicate?

• Respiration.

• Photosynthesis.

• Combustion.

• Decomposition.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

NGSS.MS-LS2-4