Unit Test Atmosphere

As altitude increases, what happens to the pressure of the air?

• The air pressure increases.

• The air pressure decreases.

• The air pressure stays the same.

• The air pressure increases at first, and then it decreases.

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?

• 1%

• 11%

• 21%

• 99%

Look at the following image of a greenhouse. A greenhouse is a building where plants are cultivated. Because a greenhouse traps some of the incoming solar radiation, the air inside is generally warmer than the air outside.

• argon

• carbon dioxide

• nitrogen

• oxygen

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The following diagram shows the layers of the atmosphere. In which layer does weather happen?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

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Earth’s atmosphere traps energy from the sun. Which is a direct result of the trapping of energy by Earth’s atmosphere?

• Earth has gravity.

• Earth has weather.

• Earth has moderate temperatures.

• Earth’s atmosphere has four layers.

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The net flow of energy into and out of the Earth system is the referred to as Earth’s energy budget. Which of the following is the main source of the energy in the Earth system?

• explosive volcanic eruptions

• kinetic energy from global winds

• convection currents in the mantle

• electromagnetic radiation from the sun

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The picture below shows all three methods of energy transfer. Which of these correctly identifies the three methods of energy transfer?

• 1: convection 2: radiation 3: conduction

• 1: radiation 2: conduction 3: convection

• 1: conduction 2: convection 3: radiation

• 1: radiation 2: convection 3: conduction

Which of these is not a way in which energy is transferred to Earth from the sun?

• conduction

• infrared radiation

• visible light

• x-rays

Which of the following is most responsible for the moving bands of air around Earth that are shown in the picture above?

• conduction

• convection

• Coriolis effect

• greenhouse effect

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As water is heated by the sun, it becomes less dense and rises. What causes the decrease in the density of warming water?

• The water particles move faster, causing the water to expand.

• The water particles move slower, causing the water to expand.

• The water particles move faster, causing the water to contract.

• The water particles move slower, causing the water to contract.

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