Quiz Review

Which gas in our atmosphere is most abundant?

• Argon
• Oxygen
• Nitrogen
• Carbon Dioxide

What percentage of our atmosphere is made up of other gases such as argon, water vapor, and carbon dioxide?

• 1%
• 21%
• 78%
• 90%

What is the percentage of oxygen in Earth's atmosphere?

• 1%
• 21%
• 78%
• 90%

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 air pressure the greatest?

• 1
• 2
• 3
• 4

What is the lowest main layer of Earth's atmosphere?

• Thermosphere
• Troposphere
• Stratosphere
• Mesosphere

How is the stratosphere different from the troposphere?

• The clouds in the stratosphere produce more rain.

• The air in the stratosphere has a greater density.

• The composition of the stratosphere lacks ozone.

• The temperature of the stratosphere warms at higher altitude.

Which choice best organizes the five layers of Earth’s atmosphere from lowest altitude to highest altitude?

• exosphere, thermosphere, mesosphere, stratosphere, troposphere

• stratosphere, troposphere, thermosphere, mesosphere, exosphere

• thermosphere, stratosphere, mesosphere, troposphere, exosphere

• troposphere, stratosphere, mesosphere, thermosphere, exosphere

Which phrase best describes Earth’s atmosphere?

• a single layer of gases surrounding Earth

• multiple layers of gases surrounding Earth

• a bubble of air close to the surface of Earth

• clouds and particles in a single layer around Earth

Why is the bottom of the troposphere warmer than its top portion?

• Heat from the core of Earth is radiated upward into the troposphere.

• Sunlight is conducted down until it reaches the bottom portion of the troposphere.

• Sunlight warms the surface of Earth and the heat is radiated back into the troposphere.

• Heat transfers from the other layers of the atmosphere and is pushed into the bottom portion of the troposphere.