puzzle

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Across
  1. 3. Use an item again
  2. 5. make new items from old ones.
  3. 8. Things available in the environment that are used by human beings to satisfy their needs.
  4. 10. Provide us with food and produce oxygen to breathe.
Down
  1. 1. use less of something
  2. 2. rocks on the earth are made up of these substances
  3. 4. removal of the uppermost layer of soil
  4. 6. It is formed by the remains of dead animals and plants.
  5. 7. The uppermost thin layer of the Earth's surface which is rich in nutrients.
  6. 9. A fossil fuel, found under the Earth and used for cooking.