Question

A bag of cement bag lying in
open gets wet due to rain
during
the
night next day
the sun shines brightly. Do you
think
changes, which have
occurred in the cement, would be
reversed​

Answer 1

Answer:

Yes, it would be reverse.

Explanation:

There is a physical change that occurs here.

The cement in the bag is now become harder. but their form could be changed by hammering on it.

Because,

there is no change in the mass of the cement and there is no energy is absorbed or released.

Hence, this is temperory change Or physical change.

I hope this might be helpful☺.