Moisture-influenced rocks are types of rocks that undergo changes due to the presence of water. This moisture can come from rain, groundwater, or humidity, affecting the rock's physical and chemical properties. Over time, water can lead to processes like weathering, which breaks down the rock, and erosion, which transports the particles away. These rocks can be found in various environments, such as riverbeds, coastal areas, and forests. Common examples include clay, which swells when wet, and sandstone, which can become more fragile. Understanding moisture-influenced rocks is important for fields like geology and environmental science.