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Water: A Precious Resource — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceWater: A Precious Resource1 Mark
MCQ
Addition of harmful substance in water leads to:
  • A
    Algal bloom
  • B
    Microbial growth
  • C
    High oxygen demand
  • ✓
    Water pollution
✓

Answer

Correct option: D.
Water pollution
The addition of any substance to water, which leads to change in its physical and chemical characteristic, is defined as water pollution.

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