3.1 Review CC Question Preview (ID: 45287)
The Atmosphere.
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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 C: 78% Nitrogen, 1% Oxygen, 21% Other
d) Planet D: 27% Nitrogen, 3% Oxygen, 70% Other
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 hot atmosphere and weak gravity
b) a planet with a hot atmosphere and strong gravity
c) a planet with a cold atmosphere and weak gravity
d) a planet with a cold atmosphere and strong gravity
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 is very cold.
b) At higher altitudes, the air pressure is lower.
c) At higher altitudes, the air contains more nitrogen.
d) At higher altitudes, the air contains more carbon dioxide.
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.
The atmosphere is divided into four layers. Which layer constitutes most of the total mass of the atmosphere?
a) the troposphere
b) the mesosphere
c) the stratosphere
d) the thermosphere
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) 11%
b) 1%
c) 21%
d) 99%
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) Weather happens in the stratosphere.
b) There are no winds in the stratosphere.
c) The stratosphere is below the troposphere.
d) The stratosphere is warmer at the top than at the bottom.
At different places on Earth, depending on elevation, air pressure varies. What causes air pressure?
a) the sun’s energy
b) density of nitrogen
c) weight of air
d) Earth’s magnetic field
Earth’s atmosphere traps energy from the sun. Which is a direct result of the trapping of energy by Earth’s atmosphere?
a) Earth has gravity.
b) Earth has weather.
c) Earth’s atmosphere has four layers.
d) Earth has moderate temperatures.
Cloudy nights are often warmer than clear nights. Which explains why cloudy nights tend to be warmer than clear nights?
a) Clouds generate wind.
b) Clouds reflect energy from the sun.
c) Clouds trap heat energy.
d) Clouds store and release heat from the Earth’s interior.
The atmosphere is the boundary between Earth’s surface and outer space. What is the atmosphere?
a) the layer of gases that surrounds Earth
b) the layer above Earth that contains ozone
c) the layer above Earth in which weather happens
d) the layer above Earth that is responsible for gravity
The atmosphere exerts a force (pressure) on Earth. Why does the atmosphere exert pressure on Earth?
a) because of electromagnetic radiation from outer space
b) because of the effect of the ozone layer on solar radiation
c) because of the pull of Earth’s gravity on air molecules
d) because of the effect of greenhouse gases on heat radiating from Earth
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