Discussion
Read the following Assertion (A) and Reason (R) and choose the correct option.
Assertion (A) : People can easily float on the surface of water of Dead Sea even if they do not know to swim.
Reason (R) : Dead Sea has 300 gm of salt in one litre of water making it, the sea having highest salt concentration.
Answer: A
Both (A) and (R) are true, and (R) explains (A).
The Dead Sea is so salty, about 300 g of salt in every litre as the EVS textbook puts it, that its water is much denser than ordinary water. Denser water pushes up harder on a body, so people float easily even without swimming.
The very high salt content is the cause of the easy floating, so the Reason explains the Assertion. (The Dead Sea is among the saltiest bodies of water in the world, though a few small lakes are saltier still.)
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