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C. Answer the Following:
1. Why is
carbon important to living things?
2. a) What are the two main process
in the carbon cycle?
b) Write and balance
the chemical equations for both processes.
3. What is the biggest reservoir for
inorganic carbon on Earth?
4. Why is nitrogen important to living
things?
5. Even though nitrogen makes up 79%
of the Earth�s atmosphere, why do organisms have problems accessing it?
6. Describe the process of denitrification
and explain why older lawns often have to be arerated.
7. Why is phosphorus important to living
things?
8. Describe the process of denitrification
and explain why older lawns often have to be arerated.
9. Phosphorus can cycle in two ways.
Describe the longer cycle, involving rocks in the Earth�s crust.
10. How are phosphates passed through
living organisms?
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