Ocean Currents Review

How does the ocean help regulate carbon levels in the atmosphere?

• The ocean can absorb atmospheric carbon dioxide.

• The ocean releases carbon dioxide into the atmosphere.

• The ocean has no effect on carbon levels.

• The ocean only absorbs oxygen from the atmosphere.

Define ocean currents.

• Ocean currents are small-scale movements of water caused by tides.

• Ocean currents are large-scale movements of water within the oceans, driven by factors such as wind, temperature, and salinity.

• Ocean currents are the vertical movements of water in the ocean.

• Ocean currents are the seasonal changes in ocean temperature.

How do aquatic organisms affect carbon levels in the ocean?

• Aquatic organisms can release carbon dioxide into the water, affecting overall carbon levels.

• Aquatic organisms absorb carbon dioxide from the water, reducing overall carbon levels.

• Aquatic organisms have no effect on carbon levels in the ocean.

• Aquatic organisms only affect carbon levels during the night.

Explain the relationship between temperature and water density.

• As water temperature increases, its density increases; as temperature decreases, density decreases.

• As water temperature increases, its density decreases; as temperature decreases, density increases.

• Water density remains constant regardless of temperature changes.

• As water temperature increases, its density remains the same; as temperature decreases, density increases.

What happens to ocean currents during El Niño events?

• They become stronger and more predictable.

• They remain unchanged throughout the year.

• They can disrupt normal ocean currents, leading to significant climate changes.

• They only affect surface currents, not deep ocean currents.

What is the role of wind in ocean currents?

• Wind drives surface currents, influencing the movement of water in the ocean.

• Wind has no effect on ocean currents.

• Wind only affects the temperature of the ocean.

• Wind creates waves but does not influence currents.

What is the density of hot water compared to cold water?

• Hot water is generally less dense than cold water.

• Hot water is denser than cold water.

• Hot water and cold water have the same density.

• Hot water is more dense than ice.

What is salinity?

• A measure of the temperature of water.

• A measure of the amount of salt dissolved in water.

• A measure of the clarity of water.

• A measure of the pressure in water.

What is the significance of ocean currents in climate regulation?

• They help distribute heat around the planet, influencing climate and weather patterns.

• They are responsible for the formation of oceanic trenches.

• They have no impact on climate regulation.

• They only affect marine life and ecosystems.

Why is understanding ocean currents important?

• It is essential for predicting weather patterns.

• It is crucial for navigation, climate science, and marine ecology.

• It helps in the exploration of outer space.

• It is only important for recreational fishing.