What is sea made of?

Salt water: The major component of the sea is salt water, which contains various dissolved minerals and elements, including sodium, chloride, magnesium, sulfate, calcium, and potassium.

Suspended materials: The sea contains various suspended materials, such as sediments (sand, silt, and clay), organic matter, and microorganisms.

Dissolved gases: The sea contains dissolved gases, such as oxygen, carbon dioxide, nitrogen, and methane, which are essential for marine life.

Marine life: The sea is home to a wide range of marine life, including fish, sea mammals, sea turtles, seabirds, and various invertebrates like corals, mollusks, and crustaceans.