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The upper stratosphere consisting of the ozone layer protects us from the sun’s radiation that falls in the wavelength region:
(1) 200 – 315 nm
(2) 400 – 550 nm
(3) 0.8 – 1.5 nm
(4) 600 – 750 nm
Wavelength range lies in 200 nm – 315 nm (U.V light).
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