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About 78% of earth atmosphere contains, ...

About `78%` of earth atmosphere contains, ……………… .

A

P

B

As

C

N

D

Bi

Text Solution

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The correct Answer is:
C
N
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Knowledge Check

  • I. Nitric acid is used in the preparation of aquaregia. II. Salts of nitric acid are used in photography. III. About 50% of earth atmosphere contains dinitrogen gas. IV. CO_(2) is the principle gas of atmosphere.

    A
    I and II only
    B
    III and IV only
    C
    III, II, IV and I
    D
    I, II, III and IV

  • Assertion ( A) : About 80% of the mass of the atmosphere is in troposphere . Reason ( R ) : Troposphere extends from 0-10 km from the earth surface.

    A
    Both (A) and ( R ) are false.
    B
    ( A) true but ( R ) false
    C
    ( A ) false but ( R ) true
    D
    Both ( A ) and ( R ) are true.

  • The pressure of the Earth's atmosphere at sea level is due to the ………….. .

    A
    gravitational attraction of the Earth for the atmosphere
    B
    evaporation of water from the seas and oceans
    C
    fact that most living things constantly breathe air
    D
    heating of the atmosphere by the Sun

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    Nuts contain about…………..% of oil.

    About 71% of earth's surface is covered with water,then why do we face scarcity of water?

    The scattering of sunlight by the atoms or molecules of the gases in the earth's atmosphere is known as ________ scattering.

    In atmosphere the percentage of CO_(2) is …………. .

    The scattering of sun light by the atoms or molecules of the gases in the Earth's atmosphere is known as:

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