NATURE

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Across
  1. 2. a very high natural elevation of the earth's surface
  2. 4. General weather conditions in an area over a long period
  3. 6. a large body of flowing water
  4. 8. A process by which green plants, algae, and some bacteria convert light energy from the sun into chemical energy
  5. 9. Animals living in their natural environment
  6. 10. a community of living organisms interacting with their environment
Down
  1. 1. a large area covered with trees
  2. 3. a variety of life in a particular habitat
  3. 4. Protecting and preserving natural resources
  4. 5. A Harmful substances introduced into the environment
  5. 7. a dry, arid area with little rainfall