CHAPTER 8 WORKSHEET FOR MIDTERM

Why does the temperature of different layers of the atmosphere vary?

• because air temperature increases as altitude increases

• because the amount of energy radieated from sun varies

• because of interference by humans

• because of the composition of gases in each layer

Which of the following would be the best description of the atmosphere?

• A mixture of gases in space

• Where airplanes fly

• Layers of moisture that surround the Earth

• Layers of gases that surround the Earth

Which layer do airplanes and jet fly in?

• Mesosphere

• Stratosphere

• Thermosphere

• Troposphere

Which layer is above the Stratosphere?

• Ionosphere

• Thermosphere

• Troposphere

• Mesosphere

Where we live.

• stratosphere
• thermosphere
• troposphere
• mesosphere

The most common gas in the atmosphere (78%).

• Nitrogen
• Oxygen
• Carbon Dioxide
• Trace gases

The coldest layer of the atmosphere is the ________.

• Mesosphere
• Thermosphere
• Stratosphere
• Troposphere

Even though the air is very thin, the hottest layer is the __________.

• Exosphere
• Mesosphere
• Troposphere
• Thermosphere

As distance from Earth increases, air pressure ___________.

• decreases
• increases
• stays the same
• none of the above

The lowest layer, where weather occurs is called the ___________________________.

• Thermosphere

• Mesosphere

• Troposphere

• Stratosphere