Our Environment

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Across
  1. 5. What percentage of the Earth's surface is water
  2. 6. Bread down and become part of the soil
  3. 7. 96.5% of the Earth's water is this kind of water
  4. 10. Human waste, detergents and chemicals are common sources of this
  5. 11. Huge pits where waste is buried between layers of the Earth
  6. 12. The first part of reducing the amount of waste
  7. 13. Disposing of waste by burning it
  8. 15. One of the most essential nutrients
  9. 16. Unable to be replaced when it is used up
  10. 17. Many sources of this are in limited supply and cannot be replaced once used up
Down
  1. 1. Industrial waste, fertilizers, pesticides and farm animal feces cause this
  2. 2. Air contains dust, smoke, chemical particles and smog
  3. 3. Breakdown and are absorbed by the environment
  4. 4. Limiting the amount of waste by reusing items
  5. 8. Changing air, water, & land from clean to dirty
  6. 9. Another form of energy
  7. 14. Resources supplied by nature