Earth's Atmosphere

What gas makes up 21% of Earth's Atmosphere?

• Nitrogen

• Oxygen

• Ozone

• None of the Above

Which layer of the atmosphere contains the ozone?

• Troposphere

• Mesosphere

• Stratosphere

• Exosphere

The most abundant gas in Earth's atmosphere is what?

• Oxygen

• Nitrogen

• Troposphere

• Helium

Weather occurs in the thermosphere?

• True

• False

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What percentage of our atmosphere is made up of other gases such as argon, water vapor, and carbon dioxide?

• 1%
• 21%
• 78%
• 90%

What is the percentage of oxygen in Earth's atmosphere?

• 1%
• 21%
• 78%
• 90%

In which layer of the atmosphere does weather occur?

• Mesosphere
• Thermosphere
• Stratosphere
• Troposphere

Tags

NGSS.MS-ESS2-5

What are the 2 most abundant gases in Earth's atmosphere?

• carbon dioxide and oxygen
• carbon dioxide and nitrogen
• nitrogen and oxygen
• nitrogen and hydrogen 

Why is atmospheric pressure greatest in the troposphere?

• gravity compresses the atmosphere as it pushes the gases down
• thermal and kinetic energy are the highest near the surface
• the coldest temperatures in the atmosphere are at Earth's surface
• the matter in the troposphere is the least dense

Within the stratosphere is the ozone layer. What does the ozone layer do?

• It protects us from meteors
• It protects us from violent solar flares
• It protects us from ultra violet radiation
• It helps us breathe