Environment

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Across
  1. 4. At pleasant temperature, rather than being hot or cold
  2. 5. To avoid wasting sth or using more than necessary
  3. 7. Put a seed into the ground so that it will grow there
  4. 9. The natural world in which people , animals and plants live
  5. 10. A large area of land that is thickly covered with trees
Down
  1. 1. Of plant to exist or develop to be bigger or better
  2. 2. Not dirty
  3. 3. To make sb/sth not harmed or damaged
  4. 6. To influence them or cause them to change in some way
  5. 8. The gas that surrounds the earth and that we breathe