Underground habitat

An underground habitat is a living space built beneath the Earth's surface, often designed for protection from harsh environmental conditions, climate stability, or safety from threats. These habitats can be used by humans, animals, or plants to shelter or grow in environments where surface conditions are challenging. They are constructed with materials that provide insulation and structural support, and they typically include life-support systems such as air circulation, water supply, and waste management. Underground habitats are useful for research, military purposes, or sustainable living, offering a controlled environment that reduces exposure to external elements.