Natural Resources

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 2. The state of being clean and conducive to health (10)
  2. 3. A low area where the land is saturated with water (plural) (8)
  3. 8. The state of being clear of trees (13)
  4. 9. Waste matter that contaminates the water or air or soil (plural) (10)
  5. 10. Frequent and watery bowel movements (9)
  6. 11. An organization of independent states formed in 1945 to promote international peace and security (13)

Down

  1. 1. The maintenance of a certain quantities unchanged during chemical reactions or physical (12)
  2. 4. Layer of air around the Earth (10)
  3. 5. A heavy odorless colorless gas formed during respiration and by the decomposition of organic (13)
  4. 6. An increase in the average temperature of the earth's atmosphere (13)
  5. 7. Available source of wealth (plural) (9)