First slide

Ozone Depletion in the Stratosphere

Question

Snow blindness in humans is due to the

Easy

A

Eutrophication of freshwater bodies
B

Depletion of tropospheric ozone
C

Reduction of greenhouse gases
D

Depletion of stratospheric ozone

Solution

UV-C is almost completely absorbed by Earth’s atmosphere, given that the ozone layer is intact. More UV-B damages reaches the surface of the Earth due to the depletion of stratospheric ozone layer. In human eye, cornea absorbs UV-B radiation, and a high dose of UV-B causes inflammation of cornea, called snow-blindness, cataract, etc. Ozone in the troposphere is ‘bad ozone’ and there is no harm in its depletion.

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