Ocean Currents & Shorelines

Front

How many different gyres are there?

Back

5

Front

_______________ are flowing streams of water that move continually through the ocean in a specific direction.

Back

Currents

Front

Currents that occur at or near the surface of the ocean are called

Back

Surface Currents

Front

What causes surface currents north and south of the equator to move in different directions? Options: Gases in the ocean, The rotation of the Earth, Temperature differences, Continental deflection

Back

The rotation of the Earth

Front

Which of the following is a factor that contributes to the shaping of shorelines? waves, tides, currents, all of these

Back

all of these

Front

A longshore current is characterized by ___________.

Back

water that approaches the shore at an angle and washes up and down the beach in a zigzag pattern

Front

An outward extension of sand that develops as a result of longshore currents moving sand down a beach is known as a(n) ____________. Options: baymouth bar, spit, barrier island, groin

Back

spit

Front

A landform that is completely surrounded by water and runs parallel to the mainland is known as a(n) ____________.

Back

barrier island

Front

____________ is the process by which humans retrieve eroded sand from underwater and place it back on the shoreline.

Back

Beach nourishment

Front

Sea level has risen and fallen again and again over time. True or False?

Back

True