The geosphere refers to the solid part of the Earth, encompassing its rocks, minerals, and landforms. It includes the crust, mantle, and core, which together make up the planet's structure. The geosphere interacts with other Earth systems, such as the atmosphere, hydrosphere, and biosphere, influencing processes like erosion and plate tectonics. The geosphere plays a crucial role in shaping the environment and supporting life. It provides essential resources, such as minerals and soil, which are vital for agriculture and construction. Understanding the geosphere helps scientists study natural phenomena, including earthquakes and volcanoes, and their impact on human activities.