infinite
The answer is not determinable both because scientists have not determined the exact volume of the universe and because the universe is always expanding.
Since all matter in the universe is composed of particles, one might say that the purpose of particles is to give us a more interesting universe.
Many many many different sub-atomic particles make up the universe as you see it. they make up ur own body and the grou we stand on.
Sub-atomic particles to be exact. But yes they are.
Particles in the universe
Neutrons
We do not know how the universe began, or what the exact sequence of events were.
It is estimated that there are 10^12 galaxies in the universe, each with about 10^12 stars. Each star has an average of 10^57 hydrogen atoms; using these estimates, the number of particles in the universe would be about 10^82.
The universe isn't s fabric. The universe is mostly just vaccum, which is like air but with absolutley no particles. My guess is that the 'fabric' of the universe is space-time.
The Wikipedia lists an estimate of 10 to the power 80 hydrogen atoms for the observable Universe. The total number of particles would be somewhere in that order, depending on what "particles" you are thinking of.
Yes. To be more exact, it is "space" within the "observed universe" that is expanding. A confusing fact is that many astronomers believe the universe as a whole may already be infinite in size. This doesn't stop them saying the observable universe is still expanding. "Infinity" is a tricky idea.
The whole universe is made up of atoms but the exact composition of the black matter (blackHole) is not known