Atmosphere and Biogeochemical Cycles

The _________________ contains almost all the mass of the atmosphere. (Densest Layer)

• mesosphere
• troposphere
• thermosphere
• stratosphere

This is the layer of the atmosphere in which meteoroids burn up.

• stratosphere
• mesosphere
• troposphere
• thermosphere

What is the outermost layer of the atmosphere called?

• thermosphere
• stratosphere
• mesosphere
• troposphere

What section would be considered the stratosphere?

• A
• B
• C
• D

Temperatures decrease with altitude in which 2 layers of the atmosphere?

• Troposphere and Stratosphere
• Stratosphere and Mesosphere
• Troposphere and Mesosphere
• Stratosphere and Thermosphere

The hottest temperatures in the atmosphere occur in the __________.

• troposphere
• mesosphere
• thermosphere
• stratosphere

What type of heat transfer involves direct contact?

• conduction
• convection
• radiation

Which layer of the atmosphere is just above the stratosphere?

• troposphere
• mesopshere
• thermosphere

Which layer of the atmosphere holds the ozone layer?

• thermosphere
• troposphere
• stratosphere
• mesosphere

As altitude increases, the density of the air increases.

• True
• False