Biological importance of Ozone layer is [CBSE PMT 2001 – McqOptions

MCQOPTIONS

1.	Biological importance of Ozone layer is [CBSE PMT 2001]
A.	It stops ultraviolet rays
B.	Ozone rays reduce greenhouse effect
C.	Ozone layer reflects radio waves
D.	Ozone layer controls \[{{O}_{2}}/{{H}_{2}}\] radio in atmosphere
Answer» B. Ozone rays reduce greenhouse effect

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