There are no plate tectonics so the hot spots stay in one place. Also, the atmosphere is much thinner and there is no rainfall so they don't get eroded.
2,300ft high
The largest volcano on Mars, Olympus Mons, is seventeen miles high. By contrast, Mt. Everest on Earth is about five and half miles high. And there are twenty huge dormant volcanoes on Mars!
He was a big big who Didnt have a mum and Took over mars
A weak hot spot in the Earth's mantle pushing magma up making a giant mountain like structure. And if the lava flows enough it could make the cooling lava into rock forming an island like Hawaii's islands.
big population
yes it is big!
it is a big ball of iron in mars
mars is smaller than the Earth
There are no volcanoes on Jupiter.
No.
Mars is 6,786 Km. in diameter. Big is a relative term. It is big compared to its moons but small compared to the sun
He lives in Mars because his last name is Mars