Wiccans do not have a fixed, common-ground theory as to how the world began. However, some say that it all came from energy. At first there was nothing but the Goddess - she created everything out of light, even the God, and humans.
Wicca doesn't affect the world very much.
Wicca is found in almost every if not every country in the world.
In the western world, its Wicca
portray the spiritual world
I'm Wiccan, and I believe that the world was made the way that science says it was, but it really depends on who you ask, as Wicca doesn't have a defined set of beliefs.
Wicca has its own scriptures.
Wicca isn't based anywhere.
No. Wicca is a religion, not a language.
Wicca isn't based anywhere.
In the U.S. and Canada, yes. In the world; I don't know.
As Wicca is a religion focusing not on race, but on the belief structures of the individual, there is not (to my knowledge) a specific African-American Wicca. If you are asking if there is a participation by African-Americans in wicca, then the answer is yes.
Yes, Faerie Wicca is practiced.