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3.1 Review CC
Test Description: The Atmosphere
Instructions: Answer all questions to get your test result.
1) An astronomer studying planets outside our solar system has analyzed the atmospheres of four planets. Which of these planets’ atmospheres would be most able to support a colony of humans?
A
Planet A: 76% Nitrogen, 23% Oxygen, 1% Other
B
Planet B: 82% Nitrogen, 11% Oxygen, 7% Other
C
Planet D: 27% Nitrogen, 3% Oxygen, 70% Other
D
Planet C: 78% Nitrogen, 1% Oxygen, 21% Other
2) The atmospheres of the planets in our solar system differ in their physical compositions. Which planet would you expect to have the thickest atmosphere?
A
a planet with a cold atmosphere and weak gravity
B
a planet with a hot atmosphere and strong gravity
C
a planet with a hot atmosphere and weak gravity
D
a planet with a cold atmosphere and strong gravity
3) A student is climbing a large mountain. When she makes it to the top of the mountain, she notices that it is more difficult to catch her breath. At higher elevations, why is it harder to breathe?
A
At higher altitudes, the air pressure is lower.
B
At higher altitudes, the air is very cold.
C
At higher altitudes, the air contains more nitrogen.
D
At higher altitudes, the air contains more carbon dioxide.
4) As altitude increases, what happens to the pressure of the air?
A
The air pressure increases.
B
The air pressure stays the same.
C
The air pressure decreases.
D
The air pressure increases at first, and then it decreases.
5) The atmosphere is divided into four layers. Which layer constitutes most of the total mass of the atmosphere?
A
the thermosphere
B
the mesosphere
C
the stratosphere
D
the troposphere
6) The gases that make up Earth’s atmosphere are commonly referred to as air. Approximately what percentage of air is made up of gases other than nitrogen and oxygen?
A
99%
B
1%
C
21%
D
11%
7) The atmosphere is divided into four layers, the mesosphere, troposphere, thermosphere, and stratosphere. Each layer has unique physical properties. Which of the following statements about the stratosphere is true?
A
The stratosphere is warmer at the top than at the bottom.
B
There are no winds in the stratosphere.
C
The stratosphere is below the troposphere.
D
Weather happens in the stratosphere.
8) At different places on Earth, depending on elevation, air pressure varies. What causes air pressure?
A
Earth’s magnetic field
B
weight of air
C
the sun’s energy
D
density of nitrogen
9) Earth’s atmosphere traps energy from the sun. Which is a direct result of the trapping of energy by Earth’s atmosphere?
A
Earth’s atmosphere has four layers.
B
Earth has moderate temperatures.
C
Earth has gravity.
D
Earth has weather.
10) Cloudy nights are often warmer than clear nights. Which explains why cloudy nights tend to be warmer than clear nights?
A
Clouds store and release heat from the Earth’s interior.
B
Clouds trap heat energy.
C
Clouds reflect energy from the sun.
D
Clouds generate wind.
11) The atmosphere is the boundary between Earth’s surface and outer space. What is the atmosphere?
A
the layer above Earth that contains ozone
B
the layer above Earth in which weather happens
C
the layer of gases that surrounds Earth
D
the layer above Earth that is responsible for gravity
12) The atmosphere exerts a force (pressure) on Earth. Why does the atmosphere exert pressure on Earth?
A
because of the pull of Earth’s gravity on air molecules
B
because of electromagnetic radiation from outer space
C
because of the effect of the ozone layer on solar radiation
D
because of the effect of greenhouse gases on heat radiating from Earth
*select an answer for all questions
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