Hydrosphere Oceans Review

Front

What is upwelling?

Back

Upwelling is the process where deep, cold, nutrient-rich water rises to the surface, often due to wind patterns, supporting marine life.

Front

What factors create ocean currents?

Back

Ocean currents are created by factors such as wind, the Earth's rotation, salinity differences, and temperature variations.

Front

Why are oceans important to human life?

Back

Oceans support biodiversity, regulate climate, store carbon, and provide resources like food and transportation.

Front

Where do the greatest number of ocean organisms live?

Back

The greatest number of organisms live close to the surface of the ocean, where there is ample sunlight and food.

Front

What are the three most important dissolved gases in the ocean?

Back

The three most important dissolved gases in the ocean are nitrogen, carbon dioxide, and oxygen.

Front

What is the role of salinity in ocean currents?

Back

Salinity affects water density, which influences the movement of ocean currents.

Front

What is downwelling?

Back

Downwelling is the process where surface water sinks, often occurring in areas where water is cooled or where there is high salinity.

Front

What is a spring tide?

Back

A spring tide is a higher than normal tide that occurs when the sun, moon, and Earth are aligned, resulting in greater gravitational pull.

Front

What is the significance of ocean biodiversity?

Back

Ocean biodiversity is crucial for ecosystem balance, providing food, habitat, and resilience against environmental changes.

Front

How do oceans regulate climate?

Back

Oceans regulate climate by absorbing heat, distributing it around the globe, and influencing weather patterns.