Environmental Issues

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Across
  1. 2. the energy that becomes from water
  2. 4. the object that help to create wind energy
  3. 5. types of energy and power that will finish
  4. 8. all the energy that becomes from sources that will never end
Down
  1. 1. types of pollution that keep the temperature in the earth
  2. 3. where I can put the rubbish
  3. 6. type of air pollution that we found frequently in the city
  4. 7. thanks to this process we don't waste useful materials