Unit 4 TEST

Front

What is the main driving force of ocean surface currents?

Back

Winds.

Front

How does the salt content in different parts of the ocean affect the directions of the currents?

Back

The amount of salt in the water makes the density of ocean water vary, so the currents flow from areas of high density to areas of lower density.

Front

What is the name of the current that flows in the Atlantic Ocean and is known for its warm waters?

Back

Gulf Stream Current.

Front

Which two celestial bodies combine to create ocean tides on Earth?

Back

The Sun and Moon's gravitational pull on water.

Front

What type of ocean currents move toward the poles?

Back

Warm currents.

Front

What type of ocean currents move toward the equator?

Back

Cold currents.

Front

What effect does the Coriolis effect have on ocean currents?

Back

It causes currents to curve due to Earth's rotation.

Front

What is the term for large systems of rotating ocean currents?

Back

Gyres.

Front

How does temperature affect ocean water density?

Back

Warmer water is less dense than colder water.

Front

What is the primary cause of ocean currents?

Back

Winds, temperature differences, and salinity differences.