Question

The water present in seas and oceans is neither fit for household
consumption, nor for agricultural and industrial use.

Answer 1

Answer:

because of the quantity of salt is more

Answer 2

Answer:

Hello. Here is your answer buddy

Explanation:

Ocean water is not fit for human consumption as it contains a LOTs [4% by weight] of salt [NaCl] in it which can cause renal [kidney] failure and even lead to death. It needs to be desalinate  for human consumption.

Ocean water is not fit for human use as it contains  too much amount of salt which can harm our body and dangerous for our body and not suitable for agriculture use.