Greenhouse Effect Review

A real greenhouse works by:

• Allowing sunlight in and trapping heat inside

• Blocking all sunlight

• Cooling the air inside

• Releasing heat to the outside

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The greenhouse effect is:

• The process by which heat is trapped in the Earth's atmosphere by greenhouse gases.

• The process of plants growing in a glass house.

• The effect of sunlight on plant growth.

• The cooling of Earth's surface due to loss of heat.

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Our greenhouse gasses are:

• Oxygen and nitrogen

• Carbon dioxide, methane, and water vapor

• Helium and argon

• Hydrogen and neon

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The greenhouse effect happens when:

• Heat from the sun is trapped by gases in the Earth's atmosphere.

• The Earth's surface reflects all sunlight back into space.

• Plants absorb all the carbon dioxide from the air.

• Oceans absorb all the heat from the sun.

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What is the main function of the glass panes in a greenhouse?

• They block all sunlight

• They allow shortwave radiation to pass

• They trap shortwave radiation outside

• They cool the air inside the greenhouse

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What happens to longwave radiation inside a greenhouse?

• Longwave radiation is trapped.

• Longwave radiation escapes easily.

• Longwave radiation is converted to ultraviolet radiation.

• Longwave radiation is absorbed by glass and released as visible light.

A greenhouse helps plants grow during winter because:

• It traps heat and keeps the environment warm.

• It blocks all sunlight from entering.

• It releases cold air inside.

• It prevents water from reaching the plants.

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What is the greenhouse effect? Fill in the blank: The greenhouse effect is when a planet stays warm because the air absorbs _____

• heat

• light

• water

• sound

Which of the following is true about the greenhouse effect?

• The air has gases that hold heat.

• The air has no gases.

• The air cools the planet.

• The air reflects all heat.

Fill in the blank: The greenhouse effect keeps the planet’s _____ stable.

• temperatures

• oceans

• continents

• winds