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Oceanography

Test Description: Oceanography Questions

Instructions: Answer all questions to get your test result.

1) The two most common ions found in ocean water are

Aphosphate and nitrate Bpotassium and calcium Cchloride and sodium Dmagnesium and sodium

2) Animals that live on the bottom of the ocean are called

Azooplankton Bnekton Cbenthos Dphytoplankton

3) Fish are abundant in areas where the ocean is upwelling because it

Achanges tidal flow in the area Bbrings nutrients to the surface Ccauses surface turbulence that attracts fish Dcauses currents that carry fish into the area

4) What is the technology used to map the ocean floor called?

Asonar Bseismology Cdoppler radar Dlaser beams

5) Why is the surface temperature of the oceans more variable than the water near the ocean floor?

AThe water is less dense at the surface. BMost energy is exchanged at the surface. CThe salt concentration is more variable at the surface. DMost animals live near the surface.

6) During which of the following phases of the moon will the tides be the highest?

Acrescent moon Bfull moon Cgibbous moon D1st Quarter

7) What affects the Earth's water?

Atilt of the Earth BEarth's revolution around the Sun CEarth's rotation on its axis Dmoon phases

8) All of the following features of the ocean indicate tectonic activity except

Aseamounts Babyssal plains Cmid-oceanic ridges Dtrenches

9) All of the following are sources of energy derived from the ocean except

Atides Bcoal Cwaves Dthermal

10) What type of current is the Gulf Stream?

Acold density (deep) current Bcold surface current Cwarm surface current Dwarm density (deep) current

*select an answer for all questions

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