Oceans 1

Front

What is the surface mixed zone in the ocean?

Back

The surface mixed zone is the upper layer of the ocean where sunlight penetrates, allowing for photosynthesis to occur. It is characterized by relatively warm temperatures and mixed water due to wind and wave action.

Front

How does water density change with depth in the ocean?

Back

Water density increases with depth due to the increasing pressure and the colder temperatures found at greater depths.

Front

What is the primary driving force behind tidal movements in the ocean?

Back

The primary driving force behind tidal movements is the gravitational pull of the moon.

Front

What is a pycnocline?

Back

A pycnocline is a layer in the ocean where there is a rapid change in water density with depth.

Front

What type of water is more likely to sink in the ocean?

Back

Cold, more salty water is more likely to sink due to its higher density compared to warmer, less salty water.

Front

What role does sunlight play in ocean ecosystems?

Back

Sunlight is essential for photosynthesis, which occurs in the surface mixed zone, supporting the growth of phytoplankton and forming the base of the ocean food web.

Front

What factors contribute to the density of seawater?

Back

The density of seawater is influenced by temperature, salinity, and pressure. Higher salinity and lower temperature increase density.

Front

How do tides affect coastal ecosystems?

Back

Tides influence the availability of nutrients, the distribution of organisms, and the physical environment of coastal ecosystems, impacting biodiversity.

Front

What is the significance of the thermocline in ocean stratification?

Back

The thermocline is a layer in the ocean where temperature decreases rapidly with depth, affecting marine life distribution and ocean circulation.

Front

How does salinity affect the buoyancy of water?

Back

Higher salinity increases the density of water, making it more buoyant, which affects the sinking and floating of objects in the ocean.