Environment

12345678910111213141516
Across
  1. 1. The process of changing waste materials such as newspapers and bottles so that they can be used again.
  2. 5. A hydrocarbon deposit, such as petroleum, coal, or natural gas, derived from living matter of a previous geologic time.
  3. 6. Dangerous, especially to people's health or safety.
  4. 7. A sudden short period of very cold weather.
  5. 9. It develops industries or makes them more modern.
  6. 11. A type of animal or plant that may soon become extinct.
  7. 16. Energy or natural materials replace themselves by natural processes, so that they are never completely used up.
Down
  1. 2. The increase of trade around the world.
  2. 3. The situation when an animal, plant, or language no longer exists.
  3. 4. A mixture of decaying plants and vegetables.
  4. 8. A large machine like a windmill used for producing electricity from the wind.
  5. 10. Used about people who care about the environment.
  6. 12. The process of removing the trees from an area of land.
  7. 13. Also called: atomic power.
  8. 14. Capable of continuing for a long time at the same level, or using methods that do not harm the environment.
  9. 15. A piece of equipment that uses energy from the Sun.