Weathering and Erosion.
Mechanical weathering (in this case, attrition) during erosion by water.
Rocks can be broken up by them being moved in quick flowing rivers or streams. If there are other rocks in there, they may hit each other and bits will come off.
chemical and physical weathering
Not all rocks are jagged. However the evolution of the river is continuous and 'rocks' are being broken-off all the time by the water, erosion, weather etc. Of course as 'rocks' are moved along by the force of the water that can make them 'jagged'.
It can be changed by being broken down in the weathering process just like all rocks. The resulting sediment can then be lithified to for a sedimentary rock.
Mechanical weathering (in this case, attrition) during erosion by water.
Rockslides.
weathering
Rocks can be broken up by them being moved in quick flowing rivers or streams. If there are other rocks in there, they may hit each other and bits will come off.
yes
It can be changed by being broken down in the weathering process just like all rocks. The resulting sediment can then be lithified to for a sedimentary rock.
The meaning of Erosion is where rocks or other Materials are being transported to another area. Make sure you do not get confused with weathering! Weathering is when rocks or other materials are being broken down physically or chemically. e.g- Rock being broken down by rain, ice, water, wind and so on.
chemical and physical weathering
Since crack is known as rocks and rocks can be broken down, theen yes it can be broken down to its powder form but it will not be cocaine. Just repeatedly beat it until its a powder.
chemical and physical weathering
Mechanical weathering.
Biological weathering is when plants or animal breakdown the rock.