What is bedrock definition?

Bedrock is the solid rock that lies beneath the soil, sediment, and other loose material on the Earth's surface. It is the bottom layer of the Earth's crust, also known as the lithosphere. Bedrock is made up of different types of rocks, including igneous, sedimentary, and metamorphic rocks. It is typically hard and stable, providing a firm foundation for the structures and formations on top of it. Bedrock can be found at varying depths, ranging from just a few centimeters to several kilometers beneath the surface of the Earth. It is an important component of geology and engineering, helping to determine soil stability, groundwater flow, and landform stability.