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 beaches. He asked his uncle and he explained the scientific reason.can you give the reason

Answer 1

bcuz the density of the river water in his village would be more than the density of the water of mumbai's beaches
HOPE IT HELPS!!

Answer 2

Scientific reason behind the fact of swimming in sea water is easy compared to village river water.

Explanation:

The person swimming in Mumbai beach has less difficulty than swimming in Village River for the reason as follows –

1. The salinity of Mumbai beaches are high because of the fact of being sea water. The salinity counter balances the weight via the principle of buoyancy. Thus the weight becomes lighter than actual and hence swimming becomes easy.

2.Whereas in village river water which has less or no salinity because of the fact bring fresh water. The weight is same as the actual or little less as the buoyancy is not able to counter balance the actual weight much and hence difficult to swim.