Layers of the Atmosphere Homework

This gas makes up 21% of the atmosphere

• ozone
• oxygen
• nitrogen
• water vapor

What is the hottest layer in the atmosphere?

• Ionosphere
• Stratosphere
• Thermosphere
• Mesosphere

What layer is the Ozone in?

• Ozone Layer
• Startosphere
• Troposphere
• It's not in one, it has its own

The _____ protects us from the harmful UV rays of the sun.

• Troposphere
• Ozone Layer
• Exosphere
• Stratosphere

As you go higher in the troposphere, the temperature _______________.

• decreases
• increases
• stays the same
• gets very hot

Which layer of the atmosphere do we live in?

• troposphere
• mesosphere
• thermosphere
• exosphere

What happens to the density (thickness)/ air pressure of the air as you increase in altitude?

• density increases
• density decreases
• density stays the same
• density disappears

What is the third layer of the atmosphere from the ground called?

• thermosphere
• mesosphere
• troposphere
• stratosphere

What are the two most abundant gases in earth's atmosphere?

• nitrogen & oxygen
• carbon dioxide & water vapor
• hydrogen & oxygen
• oxygen and ozone

What is the coldest layer of the atmosphere?

• troposphere
• mesosphere
• stratosphere
• thermosphere