Layers of the Atmosphere

Name the 5 layers of the earth's atmosphere from bottom to top.

• Troposphere, stratosphere, mesosphere, thermosphere, exosphere

• exosphere, thermosphere, mesosphere, stratosphere, troposphere

• mesosphere, stratosphere, troposphere, exosphere, thermosphere

• mesosphere, thermosphere, exosphere, troposphere, stratosphere

The atmosphere is composed of mainly:

• Oxygen

• Argon

• Carbon dioxide

• Nitrogen

Which gas is released into the atmosphere by plants as they photosynthesize?

• Oxygen

• Argon

• Carbon dioxide

• Nitrogen

Which gas is removed from the atmosphere by green plants?

• Oxygen

• Argon

• Carbon dioxide

• Nitrogen

Atmospheric pressure _______ with _______ altitude.

• decreases with increased

• decreases with decreased

• increases with increased

What is the weight of a one square inch column of the atmosphere?

• 17.4 lb/in²

• 14.7 lb/in²

• 19.7 lb/in²

• 13.4 lb/in²

The density of our atmosphere ______ with an increase in altitude.

• increases

• gets greater

• decreases

• gets heavier

How is solar radiation sent back into space?

• reflected by clouds

• absorbed by atmosphere and clouds

• scattered by atmosphere

• reflected by earth's surface

Which layer protects the earth from meteoroids?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Which layer is the coldest?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere