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There is no purpose to volcanoes. Volcanoes are simply areas where magma from the Earth's core branches out to the crust of the Earth where it is contained before pressure makes it burst. Several volcanoe eruptions have caused islands to form, but this is not the direct purpose of a volcanoe; but rather more an odd occurence.
Witness Jesus Christ to the ends of the earth!
Volcanoes - which go back to the earliest days of earth as a planet - were here billions of years before man was. Man has never know a time without volcanoes, hence there is no "year that volcanoes got noticed".
there are approx. 1500 active volcanoes on earth
Here's some ideas : Its day length is almost the same as Earth's. Its axial tilt is almost the same as Earth's. It has volcanoes. It has polar ice caps.
Well, if volcanoes didn't exist, neither would the earth. Since volcanoes helped build the earth.
Earth has volcanoes, craters, and valleys but not rings.
They don't the earth makes volcanoes
volcanoes
No. Earth (obviously) and Venus have volcanoes as well.
No, Astronomers have discovered erupting volcanoes on Venus as well as Earth
Venus, Earth, and Mars all have extinct volcanoes. Earth, however has active and dormant volcanoes as well.