write a paragraph comparing and contrasting mechanical and chemical weathering. ONE PARAGRAPH. 5 sentences

1 answer

Mechanical weathering is the process by which rocks are broken down into smaller pieces without any change in their chemical composition. This can occur through processes such as frost wedging, root growth, and abrasion. In contrast, chemical weathering involves the alteration of the chemical composition of rocks through reactions with water, acids, or other substances. While both processes result in the breakdown of rocks, mechanical weathering typically occurs through physical forces, while chemical weathering involves chemical reactions. Additionally, mechanical weathering tends to be more prevalent in environments with extreme temperature changes, while chemical weathering is often more common in areas with high levels of moisture and vegetation. Ultimately, both forms of weathering play a crucial role in the erosion and reshaping of Earth's surface.