Question

Ravi appeared in class test where he wrote some statements, what he was confused to know the statements which were related to reversible changes . would you help him to choose out of following ?


1. cowdung to biogas

2. Making cheese from milk.

3. Weathering of rocks

4. Folding of dress to pass through a waterlogged area ​

Answer 1

Answer:

cow dung of biogas

Explanation:

please maek me as a brainlist

Answer 2

Answer:

I think first option is the right answer