greenhouse gas and carbon cycle

The Earth acts like a greenhouse that catches and traps heat from the sun.

• true
• false

What is the greenhouse effect?

• The warming of a planet due to trapped radiation.
• The cooling of Earth due to air pollution.
• The heating of a solid, such as a rock.

Over the past 200 years, the level of carbon dioxide in the atmosphere has

• decreased slightly.   
• increased steadily.   

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

NGSS.HS-LS2-5

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

• True
• False

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Carbon can be found in...

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

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Respiration is the process by which animals take in ​ (a)   and release (b)  

• oxygen
• carbon dioxide

Tags

NGSS.MS-LS2-3

oxygen is a gas produced by and used by    (a)   and ​ (b)  

• plants
• animals

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

How is the burning of fossil fuels related to global warming?

• Fuels are hot
• Greenhouse effect
• Photosynthesis