The Atmosphere

What is the second most abundant gas in the atmosphere?

• Oxygen

• Carbon dioxide

• Water vapor

• Nitrogen

Nitrogen makes up ____% of gas in our atmosphere.

• 1%

• 28%

• 50%

• 78%

Which layer of the atmosphere contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Why does most of the weather occur in the troposphere?

• It is furthest away from the sun.

• The other layers are too cold.

• It contains most of the water vapor.

• Because it wants to.

Which layer of the atmosphere do meteors burn up in?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What does the root word "tropos" mean?

• Troops

• Trippy

• Change

• Weather

Which layer of the atmosphere is furthest from the surface of the Earth and is known as "outer space"?

• Mesosphere

• Exosphere

• Stratosphere

• Troposphere

Which layer of the atmosphere do airplanes fly in to avoid turbulent weather?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Why does the temperature increase in the stratosphere?

• It's closer to the sun

• The ozone layer absorbs UV rays

• Heat rises

• All of the above

Which layer of the atmosphere does aurora borealis occur in?

• Stratosphere

• Thermosphere

• Troposphere

• Mesosphere