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Worksheets

Carbon Cycle

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Which process contributes carbon dioxide to the atmosphere?

a)

anaerobic respiration

b)

photosynthesis

c)

protein synthesis

d)

tree farms

2.

Which process removes carbon dioxide from the atmosphere?

a)

deforestation

b)

tree farms

c)

burning fossil fuels

d)

cellular respiration

3.

Which statement is correct?

a)

matter cycles; energy cycles

b)

matter cycles; energy disintengrates

c)

matter cycles; energy converts

d)

matter converts; energy cycles

4.

Which of the following is correct?

a)

There is as much carbon on earth as when it was formed

b)

Carbon is being created whenever it is recycled

c)

Carbon is lost every time it is recycled

d)

Carbon changes to different forms and is never recovered

5.

What is the greatest contributor to atmospheric carbon?

a)

burning garbage

b)

burning biomass

c)

transportation

d)

household usage

6.

Which form of carbon is the most potent greenhouse gas?

a)

CO2

b)

CH4

c)

C6H12O6

d)

C3H8O3

7.

What are two (2) ways to reduce the carbon emissions from passenger cars?

a)

Use less expensive gas

b)

Carpooling

c)

Public Transportation

d)

Driving only passenger cars

8.

What does the diagram indicate regarding the carbon cycle?

a)

Only terrestrial processes cycle carbon

b)

Only aquatic processes cycle carbon

c)

Terrestrial and aquatic processes are separate

d)

Both terrestrial and aquatic cycles operate together

9.

What organisms form fossils?

a)

animals

b)

plants and animals

c)

CaCO2

d)

sedimentary rocks

10.

How do fossils form?

a)

ancient biomass is converted to fossil fuels through cellular respiration

b)

ancient biomass is converted to fossil fuels through time, heat and pressure

c)

current biomass is under heat and pressure until they become fossils

d)

atmospheric carbon diffuses into the soil and forms fossil fuels