1. What role do decomposers play in the nitrogen cycle?
2. What is pollution? Give three examples of chemical pollution.
3. Define the term “herbicide.”
4. How do sanitary landfill sites prevent chemicals from moving into the
Groundwater?
5. Describe two ways that nitrogen is removed from an ecosystem.
6. What pollutants are released from fossil fuel combustion?
7. Why do farmers use fertilizers?
8. Why does sewage need to be treated?
9. Define the terms “neutral solution,” “acid,” and “base.”
10. State whether each sentence below refers to an acid, a base, or a neutral solution.
a) Solution A turns blue litmus paper red.
b) Solution B has a pH of 10.
c) Pure water has a pH of 7.
d) Solution C neutralizes an acid.
11. a) List three human activities that release chemicals that produce acid rain.
b) Identify the chemicals that are released and the
please answer all questions from 1-11 please i really need help
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