Ocean Water
Ocean These salts have entered the oceans following their weathering from rocks on land. The dissolved salts are carried to the sea by rivers. why don't the proportions of salts build up over time? This is explained by chemical precipitation As new salts enter the sea, other salts are being deposited on the ocean floor as solids. Equilibrium has been reached. The oceans also contain dissolved gases. These come from volcanic activity on the sea bed and from the gases in the air. The oceans play an important part in the carbon cycle as reservoirs for carbon dioxide. The carbon dioxide can form hydrogen carbonates which are soluble in the sea water. Assessment 1. New salts enter the sea, other salts are being deposited on the ------------------ floor as solids. A. Car B. ocean C. Mobile ...