Water Pollution

2. Oil, when coated on the feathers of sea birds, can affect their ability to fly and keep _____.
3. _____ can be easily washed by rain into rivers, lakes and seas.
7. wastes such as plastic bags can suffocate and kill aquatic animals
8. Water is important to us because it ______ our body.
10. Oil forms a layer on the water surface and prevents the ____ from entering the water.
11. Water is used to produce food and ____ for people to consume.
12. We _____ water from Malaysia.
13. Oil may _____ up the gills of fishes and cause them to die.
14. __________ wastes from factories kill the aquatic plants and animals and affect people who eat them.

1. Untreated _____ contain harmful disease-carrying bacteria which can cause people to become very ill.
4. We removed salt from seawater to obtain water through the process of _____.
5. We collect water in our local _____ like reservoirs.
6. runoff of _____ can cause algae to grow rapidly on the water surface.
9. Water is important to us because it ______ substances around our blood circulatory system.
13. Clean water is needed to drink and _____ our food.