Carbon Cycle

Question 1

What has to happen to the carbon on earth

Answer 1

The carbon on earth has to be recycled so that sufficient is available for organisms to survive.

Question 2

Explain the stages in the carbon cycle

Fossil fuels

Answer 2

? Carbon is stored in fossil fuels (coal, oil, natural gas) and in wood.
? When fossil fuels burn, carbon is returned to the atmosphere as CO2.

Question 3

Explain the stages in the carbon cycle

Living organisms

Answer 3

? Living organisms respire and return CO2 to the atmosphere.

Question 4

Explain the stages in the carbon cycle

Plants

Answer 4

? Plants trap CO2 during photosynthesis and convert it into organic compounds such as starch and sugars - excess organic compounds are stored in the plant bodies.

Question 5

Explain the stages in the carbon cycle

Animals

Answer 5

? Animals consume other plants or animals and get their carbon this way - proteins, fats and carbohydrates are stored in their bodies.

Question 6

Explain the stages in the carbon cycle

Decomposes

Answer 6

? Decomposers break down decaying bodies of dead organisms.

? CO2 is returned to the atmosphere during the process of decay.