Natural Climate Change

Why is it important to understand natural processes in the context of global climate change?

• Understanding natural processes helps predict and mitigate the impacts of climate change.

• Climate change is not influenced by understanding natural processes.

• Natural processes are not relevant to predicting climate change.

• Understanding natural processes has no impact on climate change.

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What is the role of the ocean in regulating global climate?

• The ocean stores and distributes solar energy, regulating global climate by absorbing heat and carbon dioxide.

• The ocean only contributes to global cooling through ice formation.

• Oceans have no role in regulating global climate and are merely affected by changes in climate.

• The ocean's primary role in global climate is to produce oxygen through phytoplankton photosynthesis.

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What impact does melting polar ice have on global sea levels?

• Melting polar ice has no effect on global sea levels.

• Melting polar ice decreases global sea levels by increasing the amount of water that evaporates.

• Melting polar ice contributes to the rise in global sea levels by adding water to the oceans.

• Melting polar ice increases the salinity of the ocean, which decreases sea levels.

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According to this graph, what can scientists determine about the relationship between atmospheric CO₂ and temperature?

• as CO₂ increases, the temperature increases

• as CO₂ decreases, the temperature increases

• as CO₂ increases, the temperature decreases

• none of these

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Based on this graph, what is the relationship between carbon dioxide and global temperature?

• There is no relationship between carbon dioxide and temperature.

• If carbon dioxide increases, temperature decreases.

• If carbon dioxide increases, temperature increases.

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Discuss the effects of volcanic eruptions on global climate.

• Volcanic eruptions have no impact on global climate

• Volcanic eruptions only cause cooling effects on global climate

• Volcanic eruptions always result in global warming

• Volcanic eruptions can lead to short-term cooling due to sulfur dioxide and ash blocking sunlight, but can also contribute to long-term warming by releasing greenhouse gases like carbon dioxide.

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List some specific greenhouse gases and explain their impact on the greenhouse effect.

• Oxygen (O2)

• Carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and fluorinated gases

• Water vapor (H2O)

• Argon (Ar)

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What are the key differences between El Nino and La Nina?

• El Nino and La Nina have the same weather impacts

• The key differences between El Nino and La Nina are the sea surface temperature patterns and the resulting weather impacts.

• Both El Nino and La Nina occur at the same time

• The main difference is the color of the ocean water

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How does deforestation contribute to global climate change?

• Deforestation leads to a decrease in global temperatures.

• Deforestation has no significant impact on global climate.

• Deforestation increases the amount of greenhouse gases in the atmosphere by reducing the number of trees that can absorb CO2.

• Deforestation increases oxygen levels, which intensifies the greenhouse effect.

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How do aerosols affect global climate?

• Aerosols increase global temperatures by trapping more heat in the atmosphere.

• Aerosols have no effect on global climate as they are quickly removed from the atmosphere.

• Aerosols can cool the Earth's surface by reflecting sunlight back into space and by affecting cloud formation.

• Aerosols enhance the greenhouse effect by adding to the layer of greenhouse gases.

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