Cycles and Spheres: Real World

What is the role of the atmosphere in regulating Earth’s climate, and how does it affect weather patterns?

• It traps heat and regulates temperature.

• It acts as a protective layer against ultraviolet radiation.

• It filters water to maintain the water cycle.

• It causes the Earth's rotation.

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How do human activities, like burning fossil fuels, affect the carbon cycle?

• They reduce the amount of carbon dioxide in the atmosphere.

• They increase the amount of carbon dioxide in the atmosphere.

• They have no effect on the carbon cycle.

• They speed up the nitrogen cycle.

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What are the main steps in the water cycle?

• I don't know

• Precipitation, Evaporation, Runoff, Condensation

• Porosity and Permeability

• Decomposition, Respiration, Photosynthesis

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Explain the relationship between the carbon cycle and climate change. How does an increase in carbon dioxide affect global temperatures?

• Increased carbon dioxide cools the atmosphere.

• Increased carbon dioxide warms the atmosphere.

• Increased carbon dioxide has no effect on temperature.

• Increased carbon dioxide decreases the amount of greenhouse gases.

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How does nitrogen from the atmosphere get converted into a form that plants can use?

• Through nitrogen fixation by bacteria

• By plants absorbing it directly from the air

• Through volcanic eruptions

• By sunlight turning nitrogen into ammonia

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What role does photosynthesis play in the carbon cycle?

• It releases carbon dioxide into the atmosphere.

• It absorbs carbon dioxide and converts it into glucose.

• It absorbs oxygen and releases carbon dioxide.

• It speeds up the nitrogen cycle.

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How do changes in temperature influence the different stages of the water cycle?

• Higher temperatures increase evaporation and decrease precipitation.

• Higher temperatures decrease evaporation and increase precipitation.

• Higher temperatures have no effect on the water cycle.

• Higher temperatures increase precipitation and decrease condensation.

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Describe how human activities, such as farming and deforestation, can impact the nitrogen cycle.

• They help increase nitrogen levels in the soil.

• They reduce the amount of nitrogen in the soil.

• They increase the amount of nitrogen in the atmosphere.

• They have no effect on the nitrogen cycle.

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What is the significance of the greenhouse effect, and how does it relate to the carbon cycle?

• It cools the Earth and prevents carbon from entering the atmosphere.

• It warms the Earth by trapping heat from carbon dioxide and other gases.

• It absorbs carbon and releases oxygen into the atmosphere.

• It has no effect on the carbon cycle.

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Why is groundwater important in the water cycle, and how do human actions, like building on wetlands, affect groundwater?

• Groundwater is not important in the water cycle.

• Human actions like construction reduce the amount of groundwater available.

• Wetlands increase the amount of groundwater, so building on them helps.

• Wetlands have no effect on groundwater.

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