Mars is the Roman counterpart to Ares.
mars is a roman god of war. he is one of the greek gods also but he just has a different name in greek mythology. but yes mars is mentioned in myths and legends! hope that helped!
Greek gods are as real as any other gods.
No
Mars was the Roman version of the Greek god of war, Ares.
Just like any culture or religon they have gods.
The greek god for Mars is Ares
There aren't any powers the Greek gods could not have called upon in myth.
There were 12 main gods, such as Zeus, Poseidon, Aphrodite and Hermes but there were loads of minor gods, unfortunately i don't know the names of any greek minor gods :( Hope this helps you :D
No.
There isn't any particular terms for older Greek gods -- unless you mean the Titans, who weren't gods, but Chronos sired six of the original gods and goddesses.
No there are not. Greek Gods are treated as mythology these days and not seen as something to worship to.
They were both important Greek gods.