Environmental Science Exam Review

Which of the following is an example of an ecosystem service?

• water filtration

• food 

• oxygen

• they all are!

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NGSS.MS-LS2-1

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Ocean water _____ than fresh water

• freezes at a higher temperature

• contains more salts

• supports fewer fish

• is less abundant

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NGSS.MS-ESS2-4

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

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

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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NGSS.MS-LS1-5

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