NS2 Test Bank: NS2M3C4 - Undersea Landscapes

Front

A former coral island which has been eroded and subsided

Back

Seamount

Front

The relatively shallow (up to 200 meters), submerged border of a continent that slopes gradually and extends to a point of steeper descent to the ocean floor

Back

Continental Shelf

Front

The sudden and violent ejection of molten rock, ash or steam

Back

Volcanic eruption

Front

Where would you most likely find a guyot?

Back

Pacific Ocean

Front

A device for measuring depth of water by sending sound waves down from the surface and recording the time until the echo returns from the bottom

Back

Echo sounder

Front

What have most maritime nations agreed to regarding the continental shelf being a part of the land? Options: The entire shelf is part of the land., It is part of the land if it contains fuel., It is part of the land out to a distance of 200 nautical miles., It is not a part of the land.

Back

It is part of the land out to a distance of 200 nautical miles.

Front

What begins at the bottom of the continental shelf and extends seaward? Options: continental shelf, continental slope, continental rise, continental floor

Back

continental slope

Front

Rapidly moving underwater currents carrying debris and sediments

Back

Turbidity current

Front

The Puerto Rico Trench in the Atlantic Ocean is almost 28,800 feet deep. How many seconds would it take the echo return from the echo sounder?

Back

12

Front

Graphic representation on a map of the surface features of a place or region, indicating their relative positions and elevations

Back

Topography