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Across
  1. 3. A synonym to "toxin"
  2. 5. Solar, wind, hydro energies are ________
  3. 6. Polluting material found everywhere.
  4. 7. Antonym of"to waste"
Down
  1. 1. To inhale and exhale
  2. 2. a species' orginal living place
  3. 3. Harmful substances in the air, land, and water
  4. 4. Reduce, reuse, _________