Atmosphere Basics

Front

What is the most common gas in our atmosphere?

Back

nitrogen

Front

Approximately what percentage of our atmosphere is made of oxygen?

Back

21%

Front

As you move from Earth's surface towards space, how does the density and pressure of the air change?

Back

Both the density and pressure of air decrease.

Front

Which layer of the atmosphere do we live in?

Back

troposphere

Front

Which molecule absorbs harmful UV radiation?

Back

ozone

Front

Because this layer contains 99% of all water vapor, nearly all weather happens here.

Back

troposphere

Tags

NGSS.MS-ESS2-5

Front

This is the HOTTEST layer of the atmosphere.

Back

thermosphere

Front

This is the COLDEST layer of the atmosphere.

Back

mesosphere

Front

Which layer of the atmosphere contains the ozone layer? Options: thermosphere, mesosphere, stratosphere, troposphere

Back

stratosphere

Front

How do scientists know when one atmospheric layer ends and the next layer begins?

Back

They look for changes in temperature.