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12th Standard English Medium Biology (Zoology) Subject Environmental Issues Creative 2 Mark Questions with Solution Part - II

12th Standard

    Reg.No. :
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Biology

Time : 01:00:00 Hrs
Total Marks : 10

    2 Marks

    5 x 2 = 10
  1. What is AQI?

  2. How are sources of water pollution classified?

  3. List out the chemical methods of wastewater treatment.

  4. What is the unit of measuring ozone thickness?

  5. Name the scientist who discovered ozone layer

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