Ocean Water As Agent of Heat Transfer

​How ocean currents work?

Multiple Choice

What is an ocean current?

• a wave breaking on the shore

• a large stream of moving water flowing through the ocean

• types of underwater volcano

• a sudden rise in the sea level

Multiple Choice

There are two kinds of ocean currents. The less dense warmer currents are called surface currents. How do you call the denser and cooler water sinks at the bottom of the ocean

• surface current

• convection current

• deep ocean currents

Multiple Choice

At what depths do ocean currents occur?

• only at the surface

• only in the deep ocean

• at all depths of the ocean

• near the equator only

Multiple Choice

What primarily affects surface currents?

• tides

• wind

• Earth's rotation

• Earth's magnetic fiedl

Multiple Choice

How do currents impact global climate?

• They block sunlight from reaching the ocean floor.

• They carry warm water to the equator only.

• They circulate heat and nutrients, affecting global climate.

• They increase the salinity of the ocean/.

Multiple Choice

In which direction do surface currents transport warm water?

• from the poles toward the equator

• from the equator toward the poles

• in random directions

• in a circular pattern near the ocean floor

Multiple Choice

What factors influence surface currents?

• Wind, waves, and the Coriolis Effect

• Salinity, pressure, and tides

• temperature, sunlight, and moon phases

• volcanic eruptions, earthquakes, and wind

Multiple Choice

What is ONE effect of surface currents on coastal regions?

• They lower the salinity of the water

• They increase tidal ranges

• They warm or cool the surface area, affecting the climate

• They make water flow faster during storms.

Multiple Choice

What happens to cooler water because of ocean currents?

• It evaporates quickly

• It rises to the ocean surface

• It moves toward the equator

• It remains stagnant