7th Grade Carbon Dynamics Quizzes, Questions & Answers

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How Carbon Moves Through Ecosystems Quiz

This quiz tests your understanding of how carbon moves through ecosystems. Learn how carbon cycles between the atmosphere, living organisms, and soil through processes like photosynthesis, respiration, and decomposition....

Questions: 15 | Attempts: 10 | Last updated: Apr 30, 2026

Sample Question 1
What is the primary source of carbon that plants use to make food?

Carbon dioxide from the air

Carbon in soil

Carbon from water

Carbon from rocks

Sample Question 2
Which process releases carbon dioxide back into the atmosphere from living organisms?

Photosynthesis

Respiration

Decomposition

Combustion

Sample Question 3
True or False: All organisms release carbon dioxide through respiration.

True

False

7th Grade Carbon Dynamics Quizzes, Questions & Answers

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