1. What are point and non-point sources of pollution?

2. Symbiotic association between what two organisms is important to coral health?

3. What process provides energy to reef and estuary food webs?

4. Cite 3 abiotic factors that influence the types of organisms living in a reef ecosystem.

5. Why are marshes/wetlands/mangrove forests are critical to estuary and reef ecosystems?

6. What is BOD and how is it increased?

7. What are three benefits provided to humans by forest ecosystems?

8. What processes bring nutrients to lake ecosystems?

9. What are the sources of nitrogen in forest ecosystems (natural and human-made)?

10. Why is biodiversity important in forest communities?

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