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Biogeochemical Cycles Intro
By Heidi Cooley
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Last updated over 3 years ago
5 questions
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Question 1
1.
The amount of water on earth changes over time.
True
False
Question 2
2.
Carbon, Nitrogen, Phosphorus, and Water all cycle through the Earth using natural and human processes.
True
False
Question 3
3.
Humans do not affect the nitrogen cycle.
True
False
Question 4
4.
Fossil fuels are a source of carbon.
True
False
Question 5
5.
Animals obtain carbon by eating plants or other animals.
True
False