Ground stability refers to the ability of soil and rock to support structures and resist movement. It is crucial for construction projects, as unstable ground can lead to landslides, subsidence, or foundation failure. Factors affecting ground stability include soil type, moisture content, and geological conditions. To assess ground stability, engineers often conduct tests and surveys, such as soil sampling and geotechnical investigations. These evaluations help determine the best methods for building foundations and ensuring safety. Proper management of ground stability is essential for the longevity and integrity of structures like buildings and bridges.