Across
- 3. the increase in the temperature on Earth
- 4. an accident when oil comes out of it's container, for example at sea
- 5. the part of the Earth's atmosphere which protects the earth from the sun
- 7. when ice turns to water
- 8. a long period of time when there is no rain
Down
- 1. an accident with nuclear power, usually causing radioactivity
- 2. a large quantity of water that suddenly covers an area
- 6. the process of making the air, water or land worse, with chemicals, for example