<span>The energy in coal comes from energy that was
stored in giant plants that lived hundreds of millions of years ago in
swamp forests, even before the dinosaurs! When these giant plants and
ferns died, they formed layers at the bottom of the swamps. Water and dirt began to pile up on top of the dead plant remains.</span>
Atom is a small indivisible particle that can only be seen under a microscope
A nuclear reaction changes the number of protons and or neutrons in an atom.
<h3>What do nuclear reactions change in the atom?</h3>
A nuclear reaction is a type of reaction that results in the change of the nucleus of an atom. We know that a nucleus of an atom is made up of protons and neutrons.
So we can conclude that a nuclear reaction changes the number of protons and or neutrons in an atom.
Learn more about reaction here: brainly.com/question/26018275
#SPJ4
The carbon atoms have no double bonds between them.