What is the result of Mountain Top Removal (MTR) mining ?

On the top of a mountain water boils at

The formation of mountains on the surface of earth is the result of which of the following forces ?

On the top of a mountain, water boils at

Why is it cooler at the top of mountains?

The ratio of the height of the mountain and the depth of a mine, if a pendulum swings with the same period at the top of the mountain and at the bottom of the mine is