Atmospheric Gasses & Layers TEST

Which of the following shows the gases from most ABUNDANT (GREATEST amount) to least?

• oxygen, water vapor, nitrogen

• water vapor, CO₂, oxygen, nitrogen

• nitrogen, oxygen, argon, CO₂, water vapor

• carbon dioxide, oxygen, nitrogen, water vapor

In which LAYER would you find the 3 MAJOR atmospheric GASES? (HINT: We NEED air to breathe!)

• mesosphere

• troposphere

• stratosphere

• thermosphere

What are the two most abundant gases in our atmosphere?

• water vapor

• nitrogen

• oxygen

• argon

• carbon dioxide

Where is the ozone layer located?

• thermosphere

• troposphere

• mesosphere

• stratosphere

Most living things are found in what layer?

• troposphere

• mesosphere

• thermosphere

• exosphere

Which layer protects us from meteors?

• exosphere

• ionosphere

• mesosphere

• troposphere

What protects us from the harmful rays of the Sun?

• mesosphere

• ozone layer

• ionosphere

• exosphere

How much NITROGEN is in our air?

• 1%

• 21%

• 78%

What is the outermost layer of atmosphere called that extends to outer space?

• troposphere

• exosphere

• mesosphere

• stratosphere

Which of the following describes stratosphere?

• above troposphere, below mesosphere, ozone layer, where planes fly

• lowest layer, most weather, greatest air pressure and most water vapor, where we are

• divided into two layers, extends into space, satellites, Northern Lights

• coldest layer, protects us from meteors