1.

The 99% mass of earth atmosphere is confines to the height of:

A. 16 Km from the Earth’s surface
B. 32 Km from the Earth’s surface
C. 64 Km from the Earth’s surface
D. 72 Km from the Earth’s surface
Answer» C. 64 Km from the Earth‚Äö√Ñ√¥s surface


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