A world without mountains
I'm relatively new to all this. I'm thinking of studying a little Earth sciences in the hope that it tells me but, up front, I want to know if I'm completely off. I want to know if a world with no high altitudes can be habitable. What leads me to think it might not be is that mountains are indications of
- tectonic activity and so a liquid core generating a magnetic field repelling radiation,
- low meteorite activity.
The amount of activity sufficient to result in a world with only large hills and low peaks that never rise above the "tree line", that is the altitude at which plants grow. Can anyone tell me if such a world is feasible? Can I have a habitable world which also has nothing in the way of mountains without constant battering from meteorites? Am I overthinking this and I could just have tectonic plates that don't really move in a way so as to produce mountain ranges? Sorry if this is far too many questions for a single post.
This post was sourced from https://worldbuilding.stackexchange.com/q/129724. It is licensed under CC BY-SA 4.0.
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