Environment

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Across
  1. 2. A high-pitched sound made by forcing air through a small opening, often used as a signal.
  2. 6. A device or situation designed to catch or confine something.
  3. 8. Something that can be prevented or escaped.
  4. 9. A serious and unexpected situation that requires immediate action.
  5. 10. To maintain or support something over a period of time.
  6. 11. Animals and plants living in their natural environment.
Down
  1. 1. A sudden shaking of the ground caused by movements in the Earth's crust.
  2. 2. Materials that are no longer useful or wanted, often thrown away.
  3. 3. An overflowing of water onto normally dry land.
  4. 4. The flow of water or air in a particular direction.
  5. 5. Showing consideration or care for others.
  6. 7. To use something again instead of throwing it away.