Question

if humans were to settle on other planets which fundamental quantity will be in trouble

Answer 1

if humans were to settle on other planets which fundamental quantity will be in trouble

Explanation:

if humans were to settle on other planets which fundamental quantity will be in trouble - Gravity

Gravity is a requirement fro keeping masses on the surface. Without gravity things will not stay put and this will make life very difficult for humans on the other planets.

It will be difficult for humans to move or even to breath in other planets. The atmosphere in the other planets might be very different from the one on earth.It might be too cold or even too hot for human habitation.