Kali

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Across
  1. 2. silt.
  2. 3. Your body needs this inorder to survive.
  3. 4. the Earths groundwater.
  4. 8. Which water is alkaline or acidic.
  5. 9. Caused by the presence of suspended matter such as clay,
  6. 10. bacteria found in our environment, including the feces of
Down
  1. 1. Drainage area.
  2. 4. Rain or snow falls onto the Earth. Seeps into the ground to
  3. 5. Enters water ways from human and animal waste.
  4. 6. Occurs naturally in mineral depots, soil and seawater.
  5. 7. When much of the vegitation is replaced by
  6. 11. and other warm bodied animals.