I1. 

1. 

2. Edition

3. Annoyed

4. Instruction

5. Dramatic

6. Interesting

7. Choice

8. Heat

9. Invitation

10. Lower

2.

1. B

2. C

3. D

4. A

5. C

6. D

7! A

8. D

9. A

10. C

1. Because the polar icecaps are melting, sea levels are rising

2. Because of much better levels of nutrition, the global population has increased

3. Nuclear explosions and detonations of nuclear weapons lead to radioactive pollution

4. More and more roads are being built; as a result, air pollution is rising

5. In the last ten years, many BC valleys have been clear cut, so 143 species of salmon have become extinct

6. The fish and other aquatic animals have died due to polluted water