Unit 1 Test Review

The __________ is the hottest layer, the air is very thin, and the Aurora Borealis (Northern Lights) occur Here.

• Mesosphere

• Troposphere

• Thermosphere

• Exosphere

The __________ contains the ozone layer and is cold except the ozone.

• Stratopsphere

• Mesospehere

• Exosphere

• Troposphere

What are the 2 most common gases in all of the layers of the atmosphere?

• Nitrogen and Oxygen

• Carbon Dioxide and water vapor

• Trace gases and oxygen

• Nitrogen and trace gases

Which layer of the atmosphere does the water cycle occur in?

• Stratosphere

• Hemisphere

• Exosphere

• Troposphere

The __________ is a warming of the Earth's surface and the air above it.

• Water Vapor

• Water Cycle

• Atmosphere

• Greenhouse Effect

The __________ is a layer of gases that surrounds the planet.

• Exosphere

• Ozone

• Air Pressure

• Atmosphere

Where is Air Pressure the greatest?

• In Outer Space

• At the Surface of the Earth

• In the middle of the Atmosphere

• Inside the Earth

Which of the Following is a human cause of the Greenhouse effect?

• Coal Burning Factories

• Volcanic Eruptions

• Decomposing Plants and Animals

• Animal Respiration

The __________ is the outermost layer, it has a cold temperature of Outer Space and satellites orbit here.

• Troposphere

• Thermosphere

• Mesosphere

• Exosphere

The lowest layer of the atmosphere where weather occurs

• Troposphere

• Mesosphere

• Stratosphere

• Thermosphere