Water test

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Across
  1. 2. ___ falls from the cloud.
  2. 5. Rainwater sometimes ___ into the Earth.
  3. 6. Dirty water cane be __ for plants and animals.
  4. 7. We must not __ water.
Down
  1. 1. Firefighters need ___
  2. 3. A small are of still fresh water.
  3. 4. Water from rivers is not always ___.
  4. 5. Sea water is __.