Global water movement notes

Multiple Choice

Which of the following best describes ocean currents?

• A river within the ocean that moves large amounts of water

• A stationary body of water in the ocean

• A small stream on the ocean surface

• A wave caused by wind

Multiple Choice

Which of the following is NOT one of the five major ocean-wide gyres?

• North Atlantic

• South Atlantic

• Arctic Ocean

• Indian Ocean

Multiple Choice

Which of the following factors control ocean currents?

• Global winds

• Coriolis Effect

• Continental Deflections

• All of the above

Open Ended

Explain how the Coriolis effect influences the movement of ocean currents in both the Northern and Southern Hemispheres.

Open Ended

Describe the relationship between global winds and the formation of ocean gyres, using the diagrams and information provided.

Multiple Select

Select all the statements that correctly describe warm and cold water surface currents.

• Warm water currents are found on the east coasts of continents.

• Cold water currents bring warm water to colder regions.

• Warm water currents bring warm water to colder regions.

• Cold water currents are found on the west coasts of continents.

Multiple Choice

How do warm-water and cold-water surface currents affect the climate of coastal regions?

• Warm-water currents create a cooler climate, while cold-water currents create a warmer climate.

• Warm-water currents create a mild to warm climate, while cold-water currents create a cooler climate.

• Both warm-water and cold-water currents create a mild climate.

• Surface currents do not affect coastal climates.

Multiple Select

Which of the following factors increase the density of ocean water, leading to the formation of deep currents?

• Decreasing temperature

• Increasing temperature

• Decreasing salinity

• Increasing salinity

Open Ended

Explain how evaporation in the Mediterranean Sea can contribute to the formation of deep ocean currents.

Multiple Choice

Upwelling brings deep, cold, nutrient-rich water to the surface. Why are upwelling areas important for marine life and human activities?

• They decrease the amount of nutrients in the water.

• They promote the growth of fish and plants, making them important fishing grounds.

• They make the water warmer.

• They reduce the movement of ocean currents.

Multiple Choice

What process is illustrated when southerly winds cause the movement of surface water away from the coast, resulting in the rise of deeper water to the surface?

• Upwelling

• Downwelling

• Evaporation

• Condensation

Match

Match the following:

• Surface Current

• Deep Ocean Current

• Tidal Current

driven by the changes in density

driven by the moon's gravity

driven by the wind

Deep Currents

Surface Currents

• driven by the changes in density

• driven by the moon's gravity

• driven by the wind

• Deep Currents

• Surface Currents

Multiple Choice

Which ocean current flows along the east coast of Japan and is known for its warm waters?

• Kuroshio

• Oyashio

• Gulf Stream

• Canary

Open Ended

How do global water currents influence the climate of coastal regions?

Multiple Select

Which of the following are major roles played by surface currents in the ocean?

• Transporting heat energy from equatorial waters to the poles

• Facilitating gas exchanges such as O2 and CO2

• Supporting nutrient exchanges between surface and deeper waters

• Causing earthquakes

Open Ended

How do ocean currents function as 'rivers within the ocean'?

Multiple Choice

What are the two main types of ocean currents?

• Surface and Deep

• Warm and Cold

• Horizontal and Vertical

• Tidal and Non-tidal