Understanding Weather and Atmosphere

What is the layer of air that surrounds Earth called?

• atmosphere

• exosphere

• troposphere

• stratosphere

What term describes the weight of air?

• Air pressure

• Air density

• Atmospheric humidity

• Wind speed

What do we call the amount of water vapor in the air?

• Humidity

• Evaporation

• Precipitation

• Condensation

What is any form of water that falls from clouds known as?

• Evaporation

• Precipitation

• Transpiration

• Condensation

What is the process called when liquid changes into a gas?

• Freezing

• Sublimation

• Condensation

• Evaporation

What do we call the process by which a gas changes back into a liquid?

• Sublimation

• Evaporation

• Condensation

• Precipitation

What are winds that blow over a limited area called?

• Trade winds

• Local winds

• Global winds

• Seasonal winds

What are global winds that blow constantly from the same direction known as?

• Polar winds

• Jet streams

• Monsoon winds

• Trade winds

What is a large body of air with the same temperature and humidity called?

• Air mass

• Weather front

• Tropical cyclone

• Pressure system

What do we call the boundaries between air masses of different temperatures?

• Fronts

• Barriers

• Isotherms

• Tropopause