Question

A. Fill in the blanks.
damages our environment.
1.
and
2. Pollutants are of two types:
3. Land pollution refers to
4. Sound is measured in
5. Radioactive pollution is caused by
substances.​

Answer 1

1. Pollution

2. Primary and secondary

3. Deterioration of the earth's land

4. Decibels

5. Nuclear power plant

Answer 2

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