Question

Discuss the importance of dissolved salts in water.

Answer 1

Air dissolved in water is important for the following reasons:

• Fish extracts the oxygen from the water and expels water through the gills. Fish can survive in water only through the dissolved oxygen present in water.

• Aquatic plants make use of dissolved carbon dioxide for photosynthesis

• Carbon dioxide dissolved in water reacts with limestone to form calcium bicarbonate. Marine organisms such as snails, oysters, etc., extract calcium carbonate from calcium bicarbonate to build their shells.

• Air dissolved in water is important for living organisms to survive.