"granite stone" wrote in message
ups.com...

Umm, Mars rotates roughly the same speed as the earth, and as far as I
know, it has no active volcanoes. NEXT!

George

As I said in the article, Mars is the same as Earth with rotation and
size but has no large moons.

You said in your post "All planets or moons that have active volcanoes with
magma, such
as Earth and Io, rotate at high speeds", and that is incorrect, since
Mars rotates just as fast as the earth, yet has no active volcanoes, as
I've pointed out.

George