Atmosphere Around Us

Name the 4 layers of the earth’s atmosphere from bottom to top.

• Thermosphere Top Mesosphere Stratosphere Troposphere Bottom
• Stratosphere Top Thermosphere Troposphere Mesosphere Bottom

Define atmosphere and give (3) three examples of what the atmosphere does for the earth.

• Atmosphere is a layer of gases that surround the earth. Protects and supports life   Absorbs energy from sun Protects life from high energy radiation and frigid vacuum of space Recycles water and other chemicals
• Atmosphere is a layer of clouds that surround the moon. Destroys life.   Releases energy from sun. Damages life from high energy radiation and frigid vacuum of space Destroys the water table by emitting harmful chemicals

The atmosphere is composed of mainly?

• Oxygen
• Argon
• Carbon dioxide
• Nitrogen

Which gas is released into the atmosphere by plants following photosynthesis?

• 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
• Increases with decreased
• 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

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

• Increases
• Gets greater
• Decreases
• Gets heavier

Name three (3) ways that solar radiation is sent back into space.

• reflection
• scattered
• Absorption
• All the above