Earth's Atmosphere

Air pressure is greatest in Earth's

• Mesosphere

• Troposphere

• Stratosphere

• Thermosphere

________ makes up about 21% of Earth's atmosphere.

• Oxygen

• Nitrogen

• Water Vapor

• Carbon Dioxide

Global and local winds form as air moves from

• east to west

• west to east

• low to high pressure

• high to low pressure

Infrared radiation that is directed back toward Earth produces

• ground level ozone

• the greenhouse effect

• extreme temperatures in the exosphere

• air-pressure changes in the troposphere

Occurs when the ground heats the air directly above it

• convection

• conduction

• radiation

• land breeze

Forms when rapidly rising air cools on a sunny afternoon

• conduction

• radiation

• land breeze

• thunderstorm

Energy transfer that is responsible for most atmospheric circulation

• convection

• conduction

• radiation

• land breeze

Local wind that blows toward the sea

• condcution

• radiation

• land breeze

• thunderstorm

Protects Earth from the Sun's harmful waves.

• nonpoint source

• point source

• ozone

• Clean Air Act

Helped decrease air pollution

• Nonpoint source

• Point source

• Clean Air Act

• carbon dioxide