That would be Subduction.
subduction zone
troposphere
The mantle
Subduction zone
subduction zone
No. They may damage man made structures and cause the earth's crust to deform but they do not destroy it. The only place earth's crust is destroyed (although recycled may be a more appropriate term) is at a subduction zone where oceanic crust sinks back down into earth's mantle.
subduction zone
subduction zone
the earth's crust is 2100 ki. down the earth.
This is described as a subduction zone.
Do you mean under the Earth's crust or above it? If you mean under it: The heat under the Earth's crust rises and falls as it heats and cools. Above the crust, the sun heats the earth, heat rises, cools, falls back down. Hope that helps.
Weathering is the process of breaking down Earth's crust.