It changes by things happening and the rock is affected by it. Sometimes even natural disasters.
Chemical weathering
Chemical weathering is the type of weathering that involves a chemical change in some of the minerals in a rock. This process breaks down the rock into smaller pieces by altering its mineral composition through chemical reactions with substances like water, oxygen, or acids.
Mechanical weathering does not change a rock's chemical composition; it only breaks the rock into smaller pieces. Chemical weathering, on the other hand, alters a rock's chemical composition through processes like oxidation, hydrolysis, and dissolution.
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Physical weathering is caused by mechanical forces such as temperature changes, frost wedging, and abrasion, while chemical weathering involves the breakdown of rock through chemical reactions like oxidation and hydrolysis. Physical weathering does not change the chemical composition of the rock, whereas chemical weathering alters the mineral structure.
The type of weathering that does not alter the chemical composition of the rock is called physical weathering. The acid weathering usually alter the chemical composition of a rock.
Physical weathering is breaking down of rocks by weather that does not change their chemical components. Chemical weathering is weathering that breaks rocks down by a chemical change.
Weathering can wear down rock over time, smoothing out rough rock formations. Since harder rocks are much more resistant to weathering than softer ones, weathering can change the shape of a rock formation as the soft rock is weathered away, leaving behind the hard rock in a potentially very different shape. Erosion has a very small effect, but could slightly change the shape as dirt and rock particles on the formations are blown or washed away.
Physical weathering, such as frost wedging or root wedging, does not alter the mineral composition of a rock. These processes break down rocks into smaller pieces without changing their chemical makeup.
By weathering and erosion. The types of weathering used is:physical weathering- when a plant grows inside a rock and the roots break it apart; abrasion- mechanical weathering - erosion- and chemical weathering - acid rain, water weathering and erosion.
It's called dissolution, a form of chemical weathering.
Mechanical weathering is a process which physically changes the appearance of a rock or structure. Chemical weathering is a process which changes the chemical composition of a rock or structure.