Greenhouse Gas and Carbon Cycle

What is the impact of fossil fuel combustion on the carbon cycle?

• Fossil fuel combustion disrupts the carbon cycle by releasing stored carbon into the atmosphere.

• Fossil fuel combustion reduces greenhouse gas emissions

• Fossil fuel combustion increases carbon sequestration in the oceans

• Fossil fuel combustion has no impact on the carbon cycle

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Which gases are considered greenhouse gases?

• Oxygen (O2)

• Nitrogen (N2)

• Carbon dioxide (CO2),

• Hydrogen (H2)

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How does the burning of fossil fuels contribute to the increase in greenhouse gases?

• Burning fossil fuels reduces the amount of greenhouse gases in the environment.

• Burning fossil fuels releases carbon dioxide and other greenhouse gases into the atmosphere.

• Burning fossil fuels has no impact on greenhouse gas levels.

• Burning fossil fuels absorbs greenhouse gases from the atmosphere.

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What role do plants play in the carbon cycle?

• Plants release carbon dioxide during photosynthesis

• Plants absorb carbon dioxide during photosynthesis and store carbon in their tissues.

• Plants absorb oxygen and release carbon dioxide

• Plants have no impact on the carbon cycle

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Why is carbon dioxide often referred to as a greenhouse gas?

• It reflects heat away from Earth

• It traps heat in the Earth's atmosphere.

• It causes cooling of the atmosphere

• It absorbs sunlight

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How do oceans play a role in the carbon cycle?

• Oceans absorb carbon dioxide from the atmosphere and store it.

• Oceans have no impact on the carbon cycle

• Oceans convert carbon into nitrogen

• Oceans release carbon dioxide into the atmosphere

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NGSS.HS-ESS2-6

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Explain how deforestation impacts the carbon cycle and greenhouse gas emissions.

• Deforestation reduces greenhouse gas emissions

• Deforestation has no impact on the carbon cycle

• Deforestation impacts the carbon cycle by reducing the number of trees available to absorb carbon dioxide.

• Deforestation leads to increased oxygen levels in the atmosphere

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What process keeps Earth's temperature suitable for life

• Convention currents
• Greenhouse Effect
• Albedo Effect
• Water Cycle

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Which of the following is a greenhouse gas?

• Methane

• Oxygen
• Hydrogen
• Ammonium

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Carbon is stored in

• trees and other living things
• oceans
• underground in soil and fossil fuels
• all are correct

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