You're probably thinking of weathering and erosion (or just weathering) or excavation :)
When an oceanic plate pushes into and subducts under a continental plate, the overriding continental plate is lifted up and a mountain range is created. Even though the oceanic plate as a whole sinks smoothly and continuously into the subduction trench, the deepest part of the subducting plate breaks into smaller pieces. These smaller pieces become locked in place for long periods of time before moving suddenly and generating large earthquakes. Such earthquakes are often accompanied by uplift of the land by as much as a few meters.
Centers of continental plates can extend to depths of more than 200 kilometers, with greater depths under young mountain systems. At subduction zones the oceanic plate can be pushed as deep as 600 kilometers into the mantle before it breaks up and melts under the continental plate.
BACTERIA
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The process that breaks down rock above the earths surface are numerous and could be generally reffered to as Exogenous Processes, they include, Weathering, Denudation and Mass-wasting.
Weathering is the process that breaks up rocks on Earth's surface. This can occur through physical processes like freezing and thawing, as well as chemical processes like acid rain and oxidation. Over time, weathering can break down rocks into smaller particles and ultimately contribute to soil formation.
The average water depth of shelf breaks typically ranges from 200 to 500 meters, but this can vary depending on the specific location and geological structures present. Shelf breaks mark the point where the continental shelf drops off steeply into the deeper oceanic basin.
When an oceanic plate pushes into and subducts under a continental plate, the overriding continental plate is lifted up and a mountain range is created. Even though the oceanic plate as a whole sinks smoothly and continuously into the subduction trench, the deepest part of the subducting plate breaks into smaller pieces. These smaller pieces become locked in place for long periods of time before moving suddenly and generating large earthquakes. Such earthquakes are often accompanied by uplift of the land by as much as a few meters.
Centers of continental plates can extend to depths of more than 200 kilometers, with greater depths under young mountain systems. At subduction zones the oceanic plate can be pushed as deep as 600 kilometers into the mantle before it breaks up and melts under the continental plate.
Once magma breaks through the earths crust it is called"lava"
The enzyme amylase breaks down starch in the process of digestion.
Denudational processes, which includes, weathering, erosion, deformation, and exfoliation. Mass movement also plays a great role in changing the earths surface.
earthquakes
bacteria
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