What is Remote Sensing (RS) and Geographical Information System (GIS)? Explain their role in watershed management.

Remote Sensing (RS) and Geographical Information System (GIS) are powerful tools for collecting, analyzing, and visualizing geographic data.

Remote Sensing (RS) refers to the acquisition of information about the Earth's surface and atmosphere through the use of sensors on satellites or aircraft. These sensors capture data in various forms of electromagnetic radiation, including visible light, infrared, and microwave. The data collected through remote sensing can be used to create detailed images of the Earth's surface and monitor changes over time. RS is commonly used for applications such as mapping land use and land cover, monitoring natural resources and environmental changes, and assessing the impacts of natural disasters.

Geographical Information System (GIS) is a computer-based system for capturing, storing, manipulating, analyzing, and visualizing geographic data. GIS integrates _____ ___ _____ ____ __________ __________ ________ ________ _____ ____ _______ ___.
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