Unit 4: Earth Spheres Review

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What are the four main spheres of Earth?

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The four main spheres of Earth are the atmosphere, hydrosphere, lithosphere, and biosphere.

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What is the hydrosphere?

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The hydrosphere includes all the water on Earth, such as oceans, rivers, lakes, and water vapor in the atmosphere.

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What is the atmosphere?

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The atmosphere is the layer of gases surrounding Earth, essential for weather and climate.

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How do ocean currents affect weather patterns?

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Ocean currents can influence temperature and moisture levels in the atmosphere, affecting weather patterns.

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What is the relationship between the hydrosphere and atmosphere?

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The hydrosphere and atmosphere interact to create weather phenomena, such as clouds and precipitation.

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What is climate?

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Climate refers to the long-term average of weather conditions in a specific area over a significant period.

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What is weather?

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Weather describes the short-term atmospheric conditions in a specific place at a specific time.

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How do clouds form?

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Clouds form when water vapor in the atmosphere cools and condenses into tiny water droplets or ice crystals.

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What role does the lithosphere play in Earth's systems?

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The lithosphere, or Earth's solid outer layer, interacts with the other spheres through processes like erosion and tectonic activity.

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What is the biosphere?

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The biosphere is the global sum of all ecosystems, where life exists and interacts with the other spheres.

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