The answer is A because the universe is all of the galaxy’s,solar systems,and planets put into one
The carbon cycle - CO2 is fixed into biomolecules.
Well, usually the qn would be what is different between a compound and a molecule. but if you ask like this then, here goes.
An element is the simplest substance that can not be broken down into its components using physical processes. exp: Na, S, K
A molecule is a substance that make up of an element bonded together.
exp: O2, S2, F2(diatomic molecules)
Waves and tides are the rise and fall of ocean water
