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Carbon Cycle quiz

Total questions: 23

Worksheet time: 12mins

Name
Class
Date
1.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
2.
Which one of these does not add CO2 to the atmosphere?
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
3.
What does not produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
4.
How do living organisms return carbon to the atmosphere in the carbon cycle?
a)
respiration and photosynthesis
b)
 decomposition and respiration
5.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
6.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
7.

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

a)

Stay the same

b)

Increase

c)

Decrease

8.

Carbon can be found in...?

a)

The atmosphere

b)

Inside of the Earth

c)

Fossil fuels

d)

All of the above!

9.

If there is a fire in a forest, there will be more _ in the environment?

a)

nitrogen

b)

oxygen

c)

carbon dioxide

10.

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

a)

Magic

b)

Fuels are hot

c)

Greenhouse effect

d)

Photosynthesis

11.

The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms is called _____________.

a)

the Carbon Cycle

b)

the Oxygen Cycle

c)

the Carbon dioxide Cycle

d)

the Water Cycle

12.

How do scientists collect evidence about climate?

a)

using remote sensing from space with satellites

b)

by ground-based measurements of surface temperatures, carbon dioxide concentration and sea level

c)

by collecting “proxy data” from tree rings, ice cores, and historical records

d)

all of the above

13.

Which of the following have been linked to climate change?

a)

droughts

b)

flooding

c)

melting of polar ice caps

d)

all of the above

14.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
15.

Which food source would contribute to climate change the least?

a)

Corn

b)

Eggs

c)

Pork

d)

Beef

16.

Climate change causes extreme weather conditions such as:

a)

excessive heat

b)

drought

c)

extreme storms

d)

all of these

17.

Which compound does NOT contain carbon atoms?

a)

carbon dioxide

b)

ammonium

c)

calcium carbonate

d)

methane

18.

Respiration and Diffusion are part of which carbon cycle?

a)

Geological

b)

Biological

19.

Organic matter, burred over millions of years

a)

Fossil Fuels

b)

Decomposition

c)

Combustion

d)

Subduction

20.
Which process converts carbon in the form of sugar into carbon dioxide gas?
a)
Bioremediation
b)
Photosynthesis
c)
Respiration
d)
Transpiration
21.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
22.
What are the end products of cellular respiration? 
a)
Carbon dioxide, water and ATP energy
b)
Carbon dioxide, glucose and water
c)
Oxygen, glucose and ATP energy
d)
Water, Carbon dioxide and Oxygen
23.

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

a)

burning . . . photosynthesis

b)

fixation . . . decomposition

c)

decomposition . . . photosynthesis

d)

respiration . . . decomposition

e)

respiration . . . photosynthesis