well.. it might have something to do with that protons are bigger than electrons in matter and that works out better than antimatter where positrons are the smaller in mass.
Yes, it would be different. Antimatter is in a way the opposite of matter, but it is not the exact opposite. There are slight differences - and that is somehow the reason why we have significant amounts of matter, and not of antimatter, in the first place - though the exact details are not well-known yet (you can find out more details in the Wikipedia article on "Baryogenesis").
This is not currently known. There does exist some asymmetry between matter and antimatter - meaning that they are not exact opposites in all aspects - but this asymmetry is not enough to explain why matter exists.
The concept of anti-matter is scientific fact. The quantity in the universe, and any ability to control such anti-matter has to date been the premise of many science fiction stories. yes its scientific fact. basically, it's the opposite of matter. atoms have positively charged nucleus with negatively charged electrons flowing around it. anti matter is just the opposite. negatively charged positron in the nucleus, with positively charged anti protons moving around it.
No not possible. That is the reason you use it. All things eaten, smoked, drunk, or taken in some matter affects the body.
Just like normal matter, you can expect it to appear in different temperatures. However, note that so far, no large amounts of antimatter have been created; only individual particles and atoms. The reason for this is that when it comes in contact with "normal" matter, they destroy each other.
its always bad, because it is always unhygenic, no matter how many times you wash your underwear.......wat possible good reason is there?
yes that is possible. this matter depends on the situation and the claim you are doing. if you have valid and genuine reason to prove for your claim they do provide you coverage.
Not really, though their existence is the main reason that most tornadoes travel in a westward direction.
What are possible reason of separating accountancy department from a college department?
No, its not possible because there will always be that tension between you two. No matter the time lapsed you can't go back to be friends or just start being friends. There is a reason a relationship turns into a messy breakup!
Among their own species, yes. With each other, I guess it's possible, but it's never been done. For that matter, there's no reason for them to do so.
In theory, yes. If you put enough antimatter in, you could in theory annihilate a black hole. Also, one could throw tons of particles that would change it's momentum so it stops spinning. Neither of these is possible for humanity. Also, there is absolutely no reason to destroy black holes. <><><><><> It is theorized that black holes hold galaxies together, so destroying one seems like a very bad idea, even if it were possible.