GIS (Geographic Information System): GIS is a computer-based tool used for capturing, managing, analyzing geographically referenced data. It allows users to overlay different datasets on maps to display relationships or patterns between various geographic features.
Remote Sensing: Remote sensing involves collecting data about Earth's surface from a distance, often using satellites or aircraft. It provides information about land cover, vegetation health, and other spatial characteristics.
Spatial Analysis: Spatial analysis refers to analyzing geographic datasets to understand patterns, relationships, and processes that occur across space. It helps in making informed decisions related to land use planning, resource management, transportation networks, etc.