1. ________ is the contamination of air, land and water

• air
• poison
• pollution
• habitats

2. _________ can contaminate the soil and drain into lakes and rivers.

• habitats
• pesticides
• electronic
• factories

3. 27% of all air pollution is caused by _____ on the road.

• vehicles
• humans
• electronic
• landfills

4. Land pollution can destroy animal _______.

• water
• air
• habitats
• land

5. Most incidents of pollution are caused by _____.

• air
• landfills
• factories
• humans

6. The leaking of chemicals into a lake, river, or ocean is ______ pollution.

• air
• land
• water
• poison

7. ______ pollution is the dumping or littering of waste on land.

• air
• land
• water
• poison

8. To prevent land pollution, _______ use a liner to prevent leakage.

• electronic
• habitats
• landfills
• humans

9. Turning off ______ devices can help decrease air pollution.

• electronic
• vehicles
• factories
• pesticides

10. Waste water drained from ______ is one of the biggest contributors to water pollution.

• pesticides
• factories
• poison
• landfills