Directions : The following five (5) items consist of two statements, S

Directions :
The following five (5) items consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below.

Statement I :
32. Skin cancer is generally caused by the ultraviolet radiation.
Statement II :
Stratosphere allows ultraviolet radiation to enter the earth from the sun.

Both the statements are individually true and Statement II is the correct explanation of Statement I
Both the statements are individually true but Statement II is not the correct explanation of Statement I
Statement I is true but Statement II is false
Statement I is false but Statement II is true
This question was previously asked in
UPSC CDS-2 – 2017
Statement I is true, but Statement II is false.
– Statement I: Skin cancer is indeed generally caused by excessive exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds.
– Statement II: The stratosphere, particularly the ozone layer within it, acts as a shield that *absorbs* most of the harmful UV-B and UV-C radiation from the sun, preventing it from reaching the Earth’s surface. Therefore, the stratosphere does not *allow* harmful UV radiation to enter; it blocks it.
While some UV-A radiation does pass through the atmosphere to the surface, and small amounts of UV-B can penetrate depending on ozone depletion, the primary role of the stratospheric ozone layer is protection against the most damaging forms of UV.
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