Across
- 1. a long period of time when there is no rain
- 3. the part of the Earth's atmosphere which protects the earth from the sun
- 5. the process of making the air, water or land worse, with chemicals, for example
- 7. to sort and collect rubbish in order to treat it and produce useful materials that can be used again
- 8. the increase in the temperature on the whole planet
- 9. when ice turns into water
- 11. an unnecessary or wrong use of money, time, energy, abilities, etc.
Down
- 2. when heat cannot escape from the atmosphere and the temperature on Earth goes up
- 3. an accident when oil comes out of its container, for example at sea
- 4. an accident with atomic power, usually causing radioactivity
- 6. a large amount of water that suddenly covers an area (usually happens after heavy rains or in spring when snow melts)
- 10. to prevent time, money, or effort being wasted or spent