Answer:
The answer is "
".
Explanation:
Cavity and benzene should be extended in equal quantities.



Answer:
The Doppler red-shift of light observed from distant stars and galaxies gives evidence that the universe is expanding (moving away from a central point). This allows for Big Bang Theory, because after a “bang” occurs all of the matter moves away from the point of origin.
Technically it's a chemical change even though the process is reversible.
like dioxyribonucleic acid? if so then that's DNA