Question

2.
When a piece of paper burns, it undergoes
an irreversible change.
no change.
a reversible change.
a desirable change.​

Answer 1

Answer:

An irreversible change

Explanation:

Its not a desirable as burning of paper is not helpful for us.

Its neither a reversible change as we cannot reverse the ashes back to the original condition.

And here we see that there will be some changes while burning a paper so there will be changes

So we look into an irreversible change

Hope it helps you

Answer 2

Explanation:

A Reversible change....