Pork isn't kosher because the pig doesn't not chew a cud. In Genesis, at the end of the antediluvian period, the end of the flood, g-d gives Noah and his offspring permission to eat from the animals of the earth with the condition that the terrestrial animals have 'split hooves' and 'chew a cud.'
If it says "kosher" you can be assured it contains no pork. Most kosher gelatin is from cows.
No. Spam is a short form for "spiced ham". Since pork is not kosher, spam, accordingly, spam is not kosher.
No, it doesn't matter whether shellfish and pork are real or fake - they can't be kosher.
Yes but that would make the microwave unfit to cook kosher food in, so one should not. Then again, if this is a kosher house, pork would not be there.
Pork
That depends on whether you're Jewish. Pork is not kosher, so if you're Jewish it's not kosher to eat it. But if you're not Jewish then it is kosher for you to eat anything you like, so long as it didn't come from an animal that was still alive. There are some traditional Chinese dishes that are not kosher even for non-Jews, because the animal is eaten alive, but pork isn't one of them.
Shellfish and pork
It is called keeping kosher; obeying the Torah. The Torah forbids Jews to eat pork (Deuteronomy ch.14). See also:The Jewish laws of keeping kosher
Uh, no. They're made with pork.
Mixing meat with dairy, and shellfish and pork.
They're NOT kosher.
No, it is vegetarian. (But it is not kosher)