Question

2. Give reasons.
(i) Ocean water is salty.
(i) The quality of water is deterioting.​

Answer 1

Answer:

1} Salt in the ocean comes from two sources: runoff from the land and openings in the seafloor. Rocks on land are the major source of salts dissolved in seawater. Rainwater that falls on land is slightly acidic, so it erodes rocks. ... Ocean water seeps into cracks in the seafloor and is heated by magma from the Earth's core

2} Ocean water contains large amounts of dissolved salts. Hence it is salty. The quality of water is deteriorating. Answer: Water quality is deteriorating because of pesticides, toxic and hazardous wastes, litter and rubbish, decayed organic materials and chemicals.

Answer 2

Explanation:

Ocean water is salty because of high concentration of rock salt at its base which keep on dissolving in water. During evaporation only water evaporates & salt is left. That salt again mix with water making it salty.

The quality of water deteroting because of disposal of garbage in water , from factory , mills ,etc. Also due to acid rain