Ocean Currents Quiz

What caused the rubber ducks and other toys to wash up all over the world?

• C. Wind

• D. Earth's rotation

• B. Ocean currents

• A. Tides

What are the two main categories of ocean currents?

• D. Warm and cold currents

• A. Surface and underground currents

• C. Surface and deep ocean currents

• B. Wind and tides currents

What causes surface currents near the shore?

• D. The topography of the ocean floor

• A. Wind and tides

• B. Earth's rotation

• C. Changes in water density

What is the major force behind surface currents in the open ocean?

• A. Tides

• B. Changes in water density

• C. Wind

• D. Earth's rotation

What are the big loops formed by surface currents all over the earth called?

• D. Eddies

• C. Vortexes

• B. Gyres

• A. Whirlpools

What is the name of the winding loop formed by wind-driven surface currents and thermohaline circulation?

• D. Water Circulation Belt

• C. Current Spiral

• B. Oceanic Loop

• A. Global Conveyor Belt

What is the primary driving force behind deep ocean currents?

• A. Wind

• B. Changes in water density

• D. Tides

• C. Earth's rotation

What is the longest current in the world that carries nutrients for ocean food chains?

• B. Global Conveyor Belt

• A. Oceanic Stream

• C. Deep Water Current

• D. Thermohaline Circulation