There are twelve main gods and goddesses(the Olympians), but there are lots of other minor gods and goddesses in Greek mythology.
No. The Greek gods were just as important.
No; there are many more than seven. There were more like hundreds.
Not all of them are aggressive. They are also not any more aggressive than male Greek gods.
There are many more than nine goddesses in Greek mythology. However, nine of them are:HeraAthenaArtemisDemeterPersephoneAphroditeEileithyiaHestiaIris
The home of the Greek gods was Mt Olympus. If you want to know about other gods than the Greek, ask again!
Originally, yes. Later the whole of the Greek world adopted the same gods. Often each city had a special patron god/goddess, who was worshiped more than other gods.
She was believed to exist in the hearth of every home. She was the most humble of the gods and did not have a seat on Olympus as she gave up her seat for the god of wine Dionysus but then it was imbalanced with more gods than goddesses
Apollo's name in other cultures would be the same! That's because the greek and roman made the gods and goddesses.
Most importantly is that she is remembered today, where as most other Roman gods and goddesses are forgotten - yet at the time of the Romans, she was often confused with other goddesses and was not more important then Apollo or Jove/Jupiter.
Yes, many more. A exact number is still uncertain.
The Greeks literally related their people, the kings and commoners alike, to the Greek gods and goddesses, but none more so than Gaia, the goddess who personified the Earth itself.
That depends on the myth, however since the Greeks were sun and sky worshipers, there are more myths concerning Zeus and Apollo than any other gods and goddesses.