What is Gravity on mountains an important cause of?
Yes, if gravity were weaker, the mountains would be higher but a lot more crumbly. ergo - their present non-crumblieness is due in part to gravity.
Gravity is the cause of one important kind of force that we find everywhere.
cause it wouldn't be the state it is without it
gravity
becauuse of the gravity of the earth
"Gravity" is the cause of orbital motion. No gravity . . . no orbits, and things just sail away in straight lines. Without gravity, there's no such thing as a satellite of anything.
Gravity
The moon gravity can cause tides.
Gravity
Gravity is one of he fundamental forces of nature. It is the force by which masses are attracted to each other. And this was the way the Earth assembled itself from odd bits of rock and junk that was floating in space. If gravity was stronger, the mountains would be shorter, and it would be harder to walk uphill. if gravity was weaker, the mountains would be higher, but more crumbly, and we could walk uphill easier (but further!).
The moon's gravity doesn't cause those motions, and those motions certainly don't cause the moon's gravity.
Its mass. The mass of the moon is even the single and only cause of its gravity.