Question

Salt can be obtained by sea water by:
(a) filtration
(b) winnowing
(c) vaporisation
(d) decantation

Answer 1

Answer:

a) filtration is by which we can obtain salt for sea

Answer 2

Answer:

Salt can be obtained from sea water by evaporation.

Explanation:

Evaporation is a process that changes the liquid from its liquid state to gaseous state. Evaporation can also be known as vaporization.

Salt from sea water is obtained from evaporation. In the process of obtaining salt from sea water, sea water is made to stagnated like a pool which's depth can be approximately compared to the height of one's ankle from the ground. Then it is left to evaporate upon the heating of the Sun by leaving the impure salt behind.  Then the salt is collected and purified for human use.