Question

In all world, things are made up of elements and how do elements form and destroy????

Answer 1

Elements are the basic form of matter they re prepared by matter and can be broken down by chemical reactions

Answer 2

By Law of Conservation of Energy :

" energy can neither be created nor destroyed but it can change in form".

But it does not specify about mass really.

Mass can be created and destroyed then.

Mass can be destroyed and created by the following :

(i) Chemical reactions .

(ii) Nuclear reactions .

Nuclear reaction involves nuclear fission and fusion.