Answer:
D. Cold and high salinity.
Explanation:
Ocean water is salty because it contains dissolved salts, with concentrations of about 35 grams of salts per kilogram of water. This means that for every liter of seawater there are 35 grams of dissolved salts (mostly sodium chloride, NaCl). This water is not drinkable due to the high concentration of salts that can dehydrate a person.
Seawater is a salt-rich solution containing 85% sodium chloride (NaCl), also known as common salt, or table salt, which accounts for over 90% of the weight of all salts in the sea.
The salinity of seawater is not uniform around the globe. The least saline water on the planet is that of the Gulf of Finland in the Baltic Sea. The most saline sea is the Dead Sea, located in the Middle East (West Asia), with salinity 10 times higher than any other ocean.
In volcanic processes on marine floors, mantle-based lavas bring juvenile water directly into the ocean, that is, water contained in the inner layers of the planet that has never been in liquid form on the Earth's surface (because it has never been on the Earth's surface before) takes the name juvenile water). This water contains various chemical constituents in solution, such as chlorides, sulfates, bromides, iodides, carbon, chlorine, boron, nitrogen and many others.
In addition, due to the heat of the magma, cold water from the bottom of the ocean as it passes through the floor rocks warms up and exchanges chemicals with the rocky environment. As it ascends, it integrates with the ocean environment.