There is a couple forces one of them are erosion powered by water such a rivers
Erosion is the force that wears away Earth's surface. It is caused by friction from water or wind that moves sediment.
wears it away
Its sediment
Extrusive (volcanic) and exposed plutonic igneous rock.
Weathering erodes surface features
Weathering, or erosion changes the Earth's surface slowly over time.
Erosion
exosphere,thermosphere, mesosphere, stratosphere, troposphere
It decreases as you move away from the earth surface
Erosion wears away the surface of the rock.
erosion
Thermosphere, it is also the atmosphere with the highest temperatures.
Waves break down rocks through constant force being exerted against them. Over time, it very slowly wears away and smooths the surface.