15.1 Earth's Atmosphere Slide Notes

Multiple Choice

What is the composition of Earth's atmosphere?

• 78% nitrogen, 21% oxygen, 1% other gases

• 50% nitrogen, 30% oxygen, 20% other gases

• 90% nitrogen, 5% oxygen, 5% other gases

• 70% nitrogen, 25% oxygen, 5% other gases

Multiple Choice

What does air pressure do as you move higher in the atmosphere?

• Air pressure increases as you move higher in the atmosphere.
• Air pressure remains constant regardless of altitude.
• Air pressure fluctuates randomly in the atmosphere.
• Air pressure decreases as you move higher in the atmosphere.

Multiple Choice

What is the definition of relative humidity?

• The amount of water vapor in the air

• The ratio of water vapor in air to the maximum amount the same air could contain at the same temperature

• The temperature at which air can hold maximum water vapor

• The process of water vapor condensing into liquid

Multiple Choice

Which gas is most abundant in the atmosphere? (click to enlarge picture)

• oxygen

• nitrogen

• water vapor

• argon

Reorder

List the atmosphere layers in order form greatest altitude to least altitude.

• Exosphere

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

Warm air rises and the cool air sinks demonstrates this type of heat transfer. 

• conduction
• convection
• radiation
• Insolation 

Multiple Choice

What happens during atmospheric convection?

• Cool air circles pockets of warm air.

• Warm air circles pockets of cool air.

• Warm air rises and cool air sinks.

• Cool air rises and warm air sinks

Multiple Choice

A _____________ weather front occurs when a cold air mass moves forward, pushing the warm air mass up.

• Cold

• Warm

• Stationary

• Occluded

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident