Which wave length of harmful UV-radiations is prevented by ozone layer in entering the Earth atmosphere?
(A) 210-300nm
(B) 200-310nm
(C) 120-210nm
(D) 400-700nm
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Which wave length of harmful UV-radiations is prevented by ozone layer in entering the Earth atmosphere?
(A) 210-300nm
(B) 200-310nm
(C) 120-210nm
(D) 400-700nm
Which wave length of harmful UV-radiations is prevented by ozone layer in entering the Earth atmosphere?
(A) 210-300nm
(B) 200-310nm
(C) 120-210nm
(D) 400-700nm
Correct option is (B) 200-310nm