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Biodiversity, Conservation and Environmental Issues — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYBiodiversity, Conservation and Environmental Issues1 Mark
MCQ
What is exactly measured in Dobson units or DU?
  • ✓
    The thickness of the ozone in a column of air from the ground to the top of the Atmosphere.
  • B
    The noise level in the circumscribed area.
  • C
    The amount of chlorofluorocarbons.
  • D
    The hole in the ozone umbrella.
✓

Answer

Correct option: A.
The thickness of the ozone in a column of air from the ground to the top of the Atmosphere.
The thickness of the ozone in a column of air from the ground to the top of the Atmosphere.

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