Answers:

1. Fewer fish in a school of fish.

2. Fish can’t get enough oxygen from the water.

3. The otter has a hard time finding food.

4. An eagle, the top predator, must hunt for lunch elsewhere.

5. The ducks suffer from oiled feathers.

6. Children have a harder time accessing healthy drinking water.

7. Less biodiversity, that means less plants and animals

8. Swimmers don’t want to swim in dirty water.