AP Environmental Unit 4: Earth's Systems & Resources

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What is a watershed?

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A watershed is all of the land that drains into a particular body of water.

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NGSS.MS-ESS2-4

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In which layer of the atmosphere do all the pressure, wind, and precipitation changes occur?

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The troposphere.

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What is the correct order of convection cells starting from the equator?

Back

Hadley, Ferrell, Polar.

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What causes surface currents in the ocean?

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Surface currents are a result of Global Wind Patterns.

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Front

What happens at a subduction zone?

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The denser oceanic crust is subducting under the less dense oceanic crust.

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Define the term 'plate tectonics'.

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Plate tectonics is the theory that explains the movement of the Earth's lithosphere which is divided into tectonic plates.

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What is the role of the Hadley cell in atmospheric circulation?

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The Hadley cell is responsible for the trade winds and the tropical climate.

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What is an aquifer?

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An aquifer is a geological formation that can store and transmit groundwater.

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Explain the concept of density in relation to ocean currents.

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Density affects ocean currents as warmer, less dense water rises while cooler, denser water sinks.

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NGSS.MS-ESS2-6

Front

What is the significance of the stratosphere?

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The stratosphere contains the ozone layer, which protects the Earth from harmful UV radiation.