
Carbon Cycle Quiz for 8th Graders
Authored by Jake Villagonzalo
Biology
8th Grade
Used 7+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which process removes carbon dioxide from the atmosphere and converts it into organic compounds?
Respiration
Photosynthesis
Combustion
Decomposition
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the main source of energy for photosynthesis?
Water
Carbon dioxide
Sunlight
Oxygen
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following is NOT a way that carbon dioxide returns to the atmosphere?
Respiration
Combustion
Decomposition
Condensation
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In the carbon cycle, what do we call the process where living things breakdown food for energy?
Photosynthesis
Respiration
Combustion
Feeding
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which organisms play a crucial role in decomposition in the carbon cycle?
Plants
Animals
Bacteria and fungi
Fish
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What happens to the carbon in dead plants and animals?
It disappears
It turns into oxygen
It is decomposed and released as carbon dioxide
It stays locked in the organism forever
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
How does burning fossil fuels affect the carbon cycle?
It removes carbon dioxide from the atmosphere
It has no effect on the carbon cycle
It releases stored carbon into the atmosphere as carbon dioxide
It converts carbon dioxide into oxygen
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