The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the_________________?

Chemical Engineering Mcqs

The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the_________________?

(A)  Ionosphere

(B)  Troposphere

(C)  Stratosphere

(D)  None of these

Submitted By :Ali Uppal

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