Help with homework please??

Question

Would you expect a planet with twice the mass of Earth's surface to be more or less active than Earth’s surface? Would expect to find plate tectonics and composite volcanoes? I think that the answer is more active but i am not sure why.

Answer 1

it depends on where the planet is positioned, if it's closer to the sun I can be composed of volcanoes, but you have to be aware that the outer planets are not solid, so they only have a gas surface, I hope this helped, for the inner planets the answer above is right. A planet with twice the mass of Earth, i think would be less active, because a planet that we know that is twice the mass of earth, is a gas giant, so yea, you would not find plate tectonic and no composite volcanoes.

Answer 2

IMHO, there isn't enough information here to answer that question.  One major factor is the composition of the planet.  Certain compositions make a planet more active than others.  Another factor is distance from the star it revolves around.  Tidal factors from proximity to the parent star can cause an active surface.  If it's an ice ball a long distance from it's star it wouldn't have much surface activity.  You need more details to be able to form an answer.