Across
- 2. The opposite of Save.
- 4. An accident with nuclear power , usually causing radioactivity.
- 5. A large quantity of water that suddenly covers an area.
- 6. To stop using something or to use less.
- 7. The opposite of flood.
- 8. The process of making the air, water and land worse.
Down
- 1. When heat cannot escape from the atmosphere and the temperature on earth goes up.
- 3. The increase of temperature on earth.