Name:
Date:
Biogeochemical Cycle Quiz
1. Name the 4 biogeochemical cycles.
a.
b.
c.
d.
2. Name 2 ways water travels from land to enter the ocean.
3. Each cycle plays a role in our environment. List and explain 2 roles for each
cycle.
4. What % of the air is nitrogen?
5. What determines which plants to grow where?
6. How is carbon dioxide returned to the atmosphere?
7. What is a primary producer?
8. Why is nitrogen essential to life?
9. How do plants and animals get nitrogen if not from the atmosphere?
10. Why is phosphorus an important biological molecule?