Earth day

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Across
  1. 4. a mountain with a large circular hole at the top through which lava gases, steam and dust are or have been forced out.
  2. 6. number and variety of plant and animal species in a particular area.
  3. 8. resources things such as minerals, forests, coal, etc. which exist in a place and can be used by people.
  4. 9. strong, unpleasant and sometimes dangerour gas; smoke.
  5. 10. an extremely large wave caused by movement of the earth under the sea, often caused by an earthquake.
Down
  1. 1. damage caused to water, air or soil by harmful substances or waste.
  2. 2. the cutting down of trees in a large area.
  3. 3. monoxide poisonous gas.
  4. 5. general weather conditiones useally found in a particular place.
  5. 7. unwanted matter or material of any type; trash.