L15 ES Homework

What event in 1992 helped researchers better understand ocean currents?

• A cargo ship carrying bath toys got caught in a storm, spilling 28,000 rubber ducks into the North Pacific.

• A scientific expedition intentionally released 28,000 rubber ducks to track ocean movements.

• A massive tsunami washed 28,000 rubber ducks from coastal homes into the ocean.

• A factory accident released 28,000 rubber ducks into a river that flowed into the ocean.

Which of the following is NOT a primary force driving ocean currents?

• Wind

• Tides

• Changes in water density

• Underwater volcanic eruptions

What percentage of the ocean's water motion is controlled by deep ocean currents?

• 10%

• 50%

• 90%

• 100%

How does the Coriolis Effect influence the direction of ocean gyres in the Northern and Southern Hemispheres?

• Gyres travel clockwise in both hemispheres.

• Gyres travel counter-clockwise in both hemispheres.

• Gyres travel clockwise in the Northern Hemisphere and counter-clockwise in the Southern Hemisphere.

• Gyres travel counter-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.

Why is it important to continue to study ocean currents?

• Studying ocean currents helps in predicting earthquakes and volcanic eruptions.
• It is crucial for understanding terrestrial weather patterns and land ecosystems.
• Researching ocean currents is essential for improving agricultural practices on land.
• It is important to continue to study ocean currents to understand climate patterns, marine ecosystems, and navigation.