Atmosphere Layers Learning Check

What does the earth's atmosphere do?

• Helps to regulate the temperature on Earth
• Helps UV rays to reach the Earth's surface
• Creates meteors in the sky
• Keeps ocean waters cold

Define Altitude

• The weight of a column of air pushing down on an area

• The Amount of Mass in a given volume

• The force pushing on an area

• The distance above sea level

As you travel higher up in the troposphere the...

• altitude increaes and the air pressure increases

• altitude increases and the air pressure decreases

If you are standing at the BOTTOM of the mountain there is...

• higher air pressure

• lower air pressure

Which gas in the stratosphere absorbs harmful ultraviolet light?

• carbon dioxide

• oxygen gas

• ozone

• arbon

Which layer of the atmosphere has the highest density of gas molecules and highest atmospheric pressure?

• troposphere
• mesosphere
• stratosphere
• thermosphere

In which layer of the atmosphere does weather occur?

• Mesosphere
• Thermosphere
• Stratosphere
• Troposphere

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

• They look for changes in air pollution

• They use a combination of temperature, density, and gas composition measurements

• They look for the organisms living there

• They use specific altitudes to determine the layer.

Which is the correct sequence of atmospheric layers from the lowest altitude to highest?

• mesosphere, troposphere, thermosphere, exosphere
• troposphere, stratosphere, mesosphere, thermosphere, exosphere
• exosphere, troposphere, stratosphere, mesosphere, thermosphere
• stratosphere, mesosphere, troposphere, exosphere, thermosphere

Which of the following is a job of Earth's atmosphere?

• Hold the gases need for life.
• Protect us from harmful UV rays.
• Slow down and burn up meteors.
• All of the above