Question

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

Answer 1

Answer:

• A bag of cement lying in the open gets wet due to rain during the night. The next day the sun shines brightly. ... If due to rain, the cement bag has been wet, then the cement will react with water and will get hardened.