Question

4. Vegetable and fruit peels, fallen leaves, twigs and cow dung were put in a pit and left
for a few months. Some bacteria acted upon them and changed them to manure. Will
this be a physical or chemical change? Why​

Answer 1

Answer:

if vegetable and fruit peels fallen leaves twigs and cow dunk were put in a pit and left for a few months. some bacteria acted upon them and change them to manure, this is a chemical change.

As the manure can not be converted into its raw material, and a new substance is formed by the acting of bacteria upon them.