Environment

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Across
  1. 2. Derived from living matter of a previous geologic time.
  2. 3. The process of changing waste materials.
  3. 5. A piece of equipment that uses energy from the Sun.
  4. 6. Dangerous, especially to people's health or safety.
  5. 7. The increase of trade around the world.
  6. 9. Also called: atomic power.
  7. 13. A sudden short period of very cold weather.
  8. 14. It develops industries or makes them more modern.
  9. 15. A mixture of decaying plants and vegetables.
  10. 16. Energy or natural materials replace themselves by natural processes.
Down
  1. 1. The process of removing the trees from an area of land.
  2. 4. A type of animal or plant that may soon become extinct.
  3. 8. Used about people who care about the environment.
  4. 10. The situation when an animal, plant, or language no longer exists.
  5. 11. A large machine like a windmill.
  6. 12. Using methods that do not harm the environment.