ENVIRONMENT

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Across
  1. 1. an extremely large wave caused by a violent movement of the earth under the sea
  2. 4. to use something again
  3. 5. damage caused to water, air, etc. by harmful substances or waste
  4. 6. to damage something so badly that it cannot be used
  5. 9. to sort and collect rubbish in order to treat it and produce useful materials that can be used again
  6. 10. a mountain with a large, circular hole at the top through which lava (= hot liquid rock) gases, steam, and dust are or have been forced out
Down
  1. 2. one of many large rocks that circle the sun
  2. 3. to become or to make something become smaller in size, amount, degree, importance, etc.
  3. 7. to stop someone or something from being killed, injured, or destroyed
  4. 8. a long period when there is little or no rain