Environment

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Across
  1. 4. To keep someone or something safe from injury, damage, or loss:
  2. 5. to damage something so badly that it cannot be used:
  3. 6. an extremely large wave caused by a violent movement of the earth under the sea:
  4. 7. to sort and collect rubbish in order to treat it and produce useful materials that can be used again:
  5. 8. To long period when there is little or no rain:
  6. 9. Meaning of recycle in English
Down
  1. 1. damage caused to water, air, etc. by harmful substances or waste:
  2. 2. to stop someone or something from being killed, injured, or destroyed:
  3. 3. Small rocky objects that orbit the Sun.
  4. 4. Meaning of protect in English
  5. 7. to use something again
  6. 9. to become or to make something become smaller in size, amount, degree, importance, etc.: