ENVIRONMENT

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Across
  1. 2. A layer of air high above the Earth which prevents harmful light from the sun from reaching the Earth.
  2. 5. Dangerous substances that need careful disposal.
  3. 8. A community with environmentally-friendly buildings, clean technology and renewable energy like solar and wind.
  4. 9. A measurement of the amount of carbon-dioxide a person adds to the atmosphere.
Down
  1. 1. Forms of energy that can be replaced naturally, such as solar energy and wind power.
  2. 3. The process by which land changes into dessert.
  3. 4. Releasing no greenhouse gases like carbon-dioxide or methane.
  4. 6. To use something until there's none left.
  5. 7. Intended to be thrown away after use it.