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First one - Physical Weathering Physical weathering refers to the mechanical breakdown of rocks into smaller fragments without any change in chemical composition. Here the rock simply breaks apart due to physical forces. In physical weathering, the mineral composition of rock remains unchanged, …

First one - Physical Weathering Physical weathering refers to the mechanical breakdown of rocks into smaller fragments without any change in chemical composition. Here the rock simply breaks apart due to physical forces. In physical weathering, the mineral composition of rock remains unchanged, only the size decreases. This process is very common in arid and semi-arid regions where temperature changes are extreme. Main Factors Responsible for Physical Weathering 1. Temperature Changes Tempera