Exogenic processes refer to activities that occur on Earth's surface, including weathering, soil formation, and erosion. Weathering breaks down rocks through mechanical or chemical means, reducing their size and preparing materials for transport. Mechanical weathering breaks rocks down physically by forces like wind, water, and gravity, while chemical weathering involves reactions with substances like water, carbon dioxide, and oxygen that alter the rocks' composition. Erosion then transports weathered materials from one place to another using natural elements such as moving water, wind, gravity, and animals. Over time, this leads to the formation of soil in areas with suitable conditions.