Unit 4 Atmosphere 2022

Which layer of the atmosphere is between the troposphere and the mesosphere?

• stratosphere
• thermosphere
• ionosphere
• exosphere

How do scientists mark the boundaries for the layers of the atmosphere?

• change in temperature
• change in pressure
• change in altitude
• change in composition

Warm, rising are is ________ dense than cool air

• less
• more
• equally
• the same

Tags

NGSS.MS-ESS2-5

Because air pressure always tries to equalize, air always moves from an area of ________ pressure toward an area of _______ pressure

• high, low
• high, high
• low, high
• low, low

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

How much air pressure is there at sea level (lb/in2)?

• 14.7
• 147
• depends on location
• 0.47

Which of the following are true about our atmosphere?

• All of theses choices
• It holds oxygen for us to breathe (plus nitrogen and other gases)
• It keeps Earth's surface warm so water can exist as a liquid
• It protects us from harmful UV radiation from the Sun

Tags

NGSS.MS-ESS2-4

What are the 3 most abundant (plentiful) elements in our atmosphere from greatest to least? (Think about the pie chart)

• Nitrogen, Oxygen, Argon
• Nitrogen, Argon, Oxygen
• Oxygen, Nitrogen, Carbon Dioxide
• Oxygen, Nitrogen, Argon

The air we breathe is mostly

• nitrogen
• oxygen
• carbon dioxide
• water vapor

Which layer of the atmosphere is heated by convection currents?

• troposphere
• stratosphere
• thermosphere
• mesosphere

Which layer of the atmosphere has a special layer within it that protects us from harmful ultraviolet radiation from the sun?

• Stratosphere
• Troposphere
• Thermosphere
• Mesosphere