Human Population and Water

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Across
  1. 1. density the number of people in a given physical area
  2. 6. the chemicals used on farms to grow food
  3. 9. An overflow of rainfall or snowmelt that cannot be absorbed by soil and vegetation
  4. 12. kilometer the symbol km2
  5. 13. to move
  6. 14. a body of water that a river flows into
  7. 15. the chemicals used on a farm to kill insect pests
Down
  1. 2. A physical feature, such as a hill, mountain, valley, plateau, river, lake, etc.
  2. 3. a large, flowing body of water
  3. 4. The high points of a range of hills or mountains
  4. 5. a fossil fuel that is pumped out of the ground
  5. 7. the waste of animals, found on farms
  6. 8. A stream feeding into a larger stream, lake, etc.
  7. 10. a building that is used for the manufacture of a good or product
  8. 11. All the land that drains water into a creek, river, lake, bay or ocean. The watershed is named for the body of water into which it drains
  9. 12. kilometer an area of measurement that forms a square with sides equal to one kilometer