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Natural Resources — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources2 Marks
Question
When is water said to be polluted?
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Answer

The water is said to be polluted when:
  1. The factory waste goes into water directly without fertilising it.
  2. When people washes clothes in water.
  3. When cows buffaloes take bath in rivers.

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