Oceanography Review

How do the plates move to form a trench at a subduction zone?

• They pull apart with the oceanic being pushed under the continental.

• They push together with the oceanic plate being pushed under the continental.

• They pull apart with the continental plate being pushed under the oceanic.

• They push together with the continental plate being pushed under the oceanic

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What causes most of the oceans surface currents and waves?

• density differences

• the moon

• wind

• the sun

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What is the area where freshwater and saltwater meet?

• an estuary

• a tributary

• a subduction zone

• a dead zone

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When the sea-floor spreads and magma wells up, what is formed?

• trench

• abyssal plain

• mid-ocean ridge

• guyot

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Where would the greatest pressure be exerted?

• trench

• abyssal plain

• twilight zone

• sunlit zone

Land temperature changing more quickly than the sea temperature is the cause of...

• the oceans tides

• the oceans currents

• land and sea breezes blowing in the same directions

• land and sea breezes blowing in the opposite directions

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Which moon phase will the tides be the highest?

• Full

• 1st quarter

• Waxing Gibbous

• 3rd quarter

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As ice caps grow, sea levels...

• rise

• lower

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As ice caps melt, sea levels...

• rise

• lower

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What causes a "dead zone"?

• overfishing

• pollution

• predators

• algal blooms

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