Atmosphere

What layer of the atmosphere has the ozone layer?

• troposphere

• stratosphere

• mesosphere

• thermosphere

Space shuttles orbit in which layer?

• thermosphere

• exosphere

• stratosphere

• troposphere

_______________ has the greatest air density and density

• troposphere

• exosphere

• stratosphere

• thermosphere

(a)   has the least dense air

What is the coldest layer of the atmosphere?

• stratosphere

• Exosphere

• Troposphere

• mesosphere

What is the temperature of the mesosphere?

• -90 C

• 90 F

• -90 F

• -75 C

What layer is the ionosphere located?

• mesosphere

• stratosphere

• thermosphere

• exosphere

How thick is the troposphere?

• 11 km

• 80 km

• 50 km

• 500 km

What layer burns up meteors creating shooting stars?

• mesosphere

• stratosphere

• thermosphere

• exosphere

This layer is 500 km

• Mesosphere

• Exosphere

• Thermosphere

• Stratosphere