Atmospheres

This layer of the atmosphere contains most of the ozone.

• troposphere

• stratosphere

• mesosphere

• thermosphere

Most of the materials in the atmosphere are ___

• liquids

• solids

• gases

• plasma

What protects us from dangerous ultraviolet radiation from the sun?

• Ozone

• Carbon Dioxide

• Nitrogen

• Methane

James plans to climb to the top of Mount Everest. Which of the following statements about his climb will be the most accurate?

• Air pressure will rise and the temperature on a thermometer will increase.

• Air pressure will fall and the temperature on a thermometer will decrease.

• Air pressure will rise and the temperature on a thermometer will decrease.

• Air pressure and thermometer will not change.

Where is the altitude the greatest?

• 1

• Mount Everest

• Death Valley

• Grand Canyon

What are the 2 most abundant gases in Earth's atmosphere?

• carbon dioxide and argon

• nitrogen and oxygen

• hydrogen and helium

• methane and ozone

This is the coldest layer of the atmosphere.

• stratosphere

• troposphere

• mesosphere

• thermosphere

Which of the following statements about the stratosphere is true?
- Weather happens in the stratosphere.
- The stratosphere is below the troposphere.
- The stratosphere is warmer at the top than at the bottom.

• Weather happens in the stratosphere.

• The stratosphere is below the troposphere.

• The stratosphere is warmer at the top than at the bottom.

• The stratosphere is the lowest layer of the atmosphere.

The atmosphere is divided into four layers. Which layer constitutes most of the total mass of the atmosphere?

• the mesosphere

• the stratosphere

• the thermosphere

• the troposphere

The temperature in the stratosphere ________.

• decreases as you reach the ozone layer

• remains constant throughout the stratosphere

• increases as you reach the ozone layer

• varies randomly in the stratosphere