Question

Sanjay visited his village during vacation when he swam in the river of the village he found that it was difficult to swim in that river as compared to swim in Mumbai beach his uncle explained the scientific reason can you give the reason

Answer 1

Seawater consists of salt. The water without salt would be denser than the salt water.

As the river water does not contain salt, it is thick compared to beach water. Hence, it was easy for Sanjay to swim in Mumbai beach as compared to the river in his village.