Available Answers

1. 1.

   Why have many species of fish disappeared from the lakes?

2. 2.

   What kinds of diseases are caused by smog?

3. 3.

   What is the effect of ultraviolet radiation?

4. 4.

   What is the name of the corporation responsible for the outbreak of Minamata disease?

5. 5.

   What species of crabs have almost disappeared because of DDT contamination?

6. 6.

   In which year did the Chernobyl accident take place?