Composition of Earth's Atmosphere | Earth Science | Quiz

Which of the following is NOT a major component of the atmosphere?

nitrogen

oxygen

ozone

argon
Why does atmospheric temperature increase with altitude in the stratosphere?

because it is closer to the sun

because is it less dense than the troposphere

because it is under a lot of pressure

because of the presence of the ozone layer
In the troposphere, temperature _______________ with altitude.

decreases

increases

stays the same

changes randomly
Earth is the only known planet with an atmosphere.

true

false
The outermost layer of the atmosphere is called the

troposphere.

stratosphere.

thermosphere.

mesosphere.
Atmospheric pressure remains a constant 1,013 mb at sea level.

true

false
Pressure decreases rapidly with altitude because the air becomes

colder.

less dense.

warmer.

rich in ozone.
Why does the atmosphere help sustain and protect life on the earth's surface?

The ozone layer shields us from harmful UV radiation.

Greenhouse gases warm the air near the surface by 30^o C.

Oxygen is a major component of the atmosphere.

all of the choices
Carbon dioxide and water vapor are both ______________, acting to warm the atmosphere.

highly variable

greenhouse gases

major components

minor components