Properties and Composition of Seawater Quiz

Sodium is the most abundant element in seawater.

The approximate salinity of seawater is 3.5%.

The average temperature of seawater is 15°C.

Salinity primarily determines the density of seawater.

Reverse osmosis removes salt from seawater to make it drinkable.

The average depth of the ocean is 4,000 meters.

Atmospheric diffusion is the primary source of dissolved gases in seawater.

Salinity refers to the measure of the total dissolved salts in seawater.

The Coriolis effect contributes to the formation of oceanic currents.

Temperature is the primary factor affecting seawater density in polar regions.

The average pH of seawater is 8.0.

Oxygen is the most abundant gas in seawater due to photosynthesis by marine plants.

The bathypelagic layer of the ocean contains the densest seawater.

Photosynthesis by marine plants is the primary source of dissolved oxygen in seawater.

The Arctic Ocean contains the highest salinity.

Water molecules are the primary component of seawater that affects its thermal properties.

Depth is the primary factor influencing the color of seawater.

The surface layer of the ocean experiences the highest temperatures due to solar radiation.

Carbonate ions contribute most to the alkalinity of seawater.

The deep zone of the ocean experiences the highest pressure.

Carbon dioxide is the main dissolved gas in seawater that influences its acidity.

The scattering of light by water molecules is responsible for the blue color of the ocean.

The hadopelagic layer of the ocean is characterized by very low temperatures, high pressure, and complete darkness.

Approximately 80% of dissolved oxygen is present in seawater compared to air.

Carbon dioxide contributes significantly to the greenhouse effect in the ocean.