No. All volcanoes will eventually go extinct and erode away.
Yes, they exist, but they do die.
ice valcanos do exist
yes, they stay where they are forever. That doesn't mean that they stay active forever.
Yes, volcanoes still exist and many are still active.
a lot
Well, if volcanoes didn't exist, neither would the earth. Since volcanoes helped build the earth.
No
Pacific plate and north american plate
On the edges of plate boundaries
They usually exist on a hotspot. An example: Mauna Loa, Hawaii
The islands were formed from erupting volcanoes.
No, they exist on the planets Venus and Mars as well as Io, a moon of Jupiter.