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O Level Biology Learning Guide: Certification Test 1331

Pollution: Inorganic Wastes as Cause MCQ App & e-Book: MCQ 1331

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MCQ: 1331

Compounds which tend to accumulate in bodies are

  1. passed on to final consumers
  2. are not excreted from the bodies
  3. may contain lead and mercury
  4. all of above

Pollution: Inorganic Wastes as Cause Learning Guide: O Level Biology App & eBook MCQ

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