Atmosphere: Question Preview (ID: 9221)

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What is the Atmosphere?
a) The layer of gases that surrounds the Earth.
b) The layer of water in the oceans.
c) The layer that contains the ozone layer
d) The layer in which weather occurs.

The two most abundant gases in the atmosphere are
a) carbon dioxide and oxygen
b) carbon dioxide and nitrogen
c) nitrogen and oxygen
d) nitrogen and argon

What percent of our atmosphere is made up of gases other than nitrogen or oxygen?
a) 5%
b) 1%
c) 10%
d) 2%

Air has pressure because
a) The stratosphere is thick
b) Air has mass
c) Wind moves the air
d) Temperature warms the air

Density can be determined using the formula
a) Density = mass / volume
b) Density = volume / mass
c) Density = mass * volume
d) Density = mass + volume

The fewer particles of air in a space means
a) More the air weighs
b) Greater the air pressure
c) More dense the air
d) Less dense air

An instrument used to measure air pressure is called
a) Thermometers
b) Hygrometers
c) Hydrometers
d) Barometers

As you rise upward in the atmosphere, what will happen to air pressure?
a) Increases
b) Decreases
c) Doesn’t change
d) First increases, then decreases.

The layers of the atmosphere are separated according to changes in
a) Altitude
b) Density
c) Pressure
d) Temperature

The layer of our atmosphere in which weather occurs is the
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Exosphere

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