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Ultraviolet radiation

4 PYQ across 3 exams · 1982–2026 — the complete chronological timeline of how UPSC has tested this idea, oldest to newest.

CSE 1982 → CDS 2015 → GEO 2026
19821 PYQ
CSEQ17
Ozone present in the ozone layer of the atmosphere is important because…
19931 PYQ
CSEQ17
When there is depletion of ozone in the stratosphere, the wavelength of radiation striking the earth's surface will be…
20151 PYQ
CDSQ36
Ozone layer of the Earth's atmosphere is important for living organisms because it…
20261 PYQ
GEOQ120
Why is sunscreen lotion used while moving out during daytime in summer?…
Related concepts — explore their timelines too
Ozone layer
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