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Class 8 Science Placement Tests: Certification Test 313

Human Activities and Ecosystem Study App & e-Book: MCQ 313

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MCQ: 313

Pollutants in air are strong enough to turn rain water in to

  1. chemical
  2. acid rain
  3. pure water
  4. water droplets
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Human Activities and Ecosystem Placement Tests: Class 8 Science App & eBook Notes

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Human Activities and Ecosystem Notes App (iOS & Android)

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