Across
- 2. a mountain with a large, circular hole at the top through which lava
- 4. to keep someone or something safe from injury, damage, or loss
- 5. damage caused to water, air, etc
- 7. to stop someone or something from being destroyed
- 10. one of many large rocks that circle the sun
- 14. to become or to make something become smaller in size
- 15. to waste a skill or opportunity
- 16. to use something again
- 17. sudden violent movement of the earth's surface
Down
- 1. changes in the world's weather
- 3. make an area by adding harmful chemical
- 6. plastic objects which have not been recycled or disposed of properly
- 8. a fire burning in an area of land with many trees
- 9. to damage something so badly that it cannot be used
- 11. an extremely large wave caused by a violent movement of the earth under the sea
- 12. to sort and collect rubbish in order to treat it and produce useful materials that can be used again
- 13. a long period when there is little or no rain