How is physical weathering different from chemical weathering
Physical weathering is the process of breaking down rocks and minerals into smaller pieces without changing their chemical composition. This type of weathering includes processes such as freezing and thawing, temperature changes, abrasion, and exfoliation. Physical weathering mainly occurs due to physical forces acting on rocks, such as pressure, wind, water, and ice.
On the other hand, chemical weathering is the process of altering the chemical composition of rocks and minerals through chemical reactions. This type of weathering involves chemical processes such as dissolution, oxidation, hydration, and hydrolysis. Chemical weathering is mainly caused by the action of water, air, acids, and other chemicals, which can dissolve or react with the minerals in rocks.
In summary, the main difference between physical weathering and chemical weathering is that physical weathering breaks down rocks into smaller pieces without changing their chemical composition, whereas chemical weathering alters the chemical composition of rocks and minerals.