Approximate height of ozone layer above the ground is [CBSE PMT 1991]

1.	Approximate height of ozone layer above the ground is [CBSE PMT 1991]
A.	60 to 70 km
B.	59 km to 80 km
C.	mgR
D.	100 km to 200 km
Answer» B. 59 km to 80 km

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Approximate height of ozone layer above the ground is [CBSE PMT 1991]

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