it is just all sloppy and smooth surface
A sloped surface is used to help lift a load up.
Examples of household inclined planes: The slope of a sink or basin that allows the water to drain. Anything with a sloping surface cut into it, such as the thread on a screw, bolt or nut. A doorlatch, having a sloping surface that slides along a srikeplate when a door is closed and latched. A doorstop, usually a triangular piiece of wood or rubber-like material used to hold a door open. The sloping blades of a fan to force the movement of air.
That varies depending on the height of the sun, whether the shadow is cast on a sloping surface and so forth.
level
Ramp?
single wedge-it has only one sloping surface double wedge-it has more than one sloping surface
inclined plane
lift
That would be a wedge.
Passed part of the erath's surface sloping sides
A landslide.
It sounds like an inclined plane
r0ck s1ide
It's a symmetrical sloping flat surface at a 90 degree edge or corner.
A sloped surface is used to help lift a load up.
This could be a hill (also hillock).
an inclined plane