Environmental Science Exam Review

Ocean water _____ than fresh water

• freezes at a higher temperature
• contains more salts
• supports fewer fish
• is less abundant

Deep ocean currents flow along the

• ocean floor.
• ocean surface.
• thermocline.
• halocline.

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NGSS.MS-ESS2-6

The ocean's surface currents circulate in different directions, depending on the _____ in which they occur.

• hemisphere
• troposphere
• hydrosphere
• biosphere

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NGSS.MS-ESS2-4

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Which of the following is the layer of the ocean extending from the base of the thermocline to the bottom of the ocean?

• surface layer
• thermocline
• deep zone
• bottom zone

Currents at the surface of the ocean are driven by

• tectonic plates.
• gravity.
• salinity.
• wind.

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NGSS.MS-ESS2-6

Which of the following is NOT an ocean?

• Atlantic
• Pacific
• Indian
• Asian 

Fresh water can be found

• frozen in ice caps
• in rivers and lakes
• in underground aquifers
• in ice caps, rivers, lakes, and underground aquifers

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NGSS.MS-ESS2-4

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In areas with underground aquifers the majority of drinking water comes from

• fresh surface water
• saline surface water
• groundwater, aquifers
• a source other than surface water or aquifers

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NGSS.MS-ESS2-4

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A river system is

• an area of land and rivers in which water drains into a single river.
• a rock layer that stores and allows the flow of groundwater.
• stream-like movements of water that flow along the ocean floor.
• water with sodium and chlorine dissolved in it.

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NGSS.MS-ESS2-4

NGSS.MS-ESS2-2

Which of the following is NOT a factor as to why life exists in the biosphere?

• moderate temperatures
• tectonic plates move
• liquid water is available
• energy available

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