What is Remote Sensing technology and its applications?

Remote Sensing Technology:

• Definition: Science of acquiring information about Earth's surface features from a distance using sensors mounted on satellites or aircraft without physical contact.
• Types: Passive Remote Sensing (uses natural sunlight, e.g. Landsat, IRS) and Active Remote Sensing (emits energy signals, e.g. Radar/LiDAR).
• Applications: Crop yield estimation, flood monitoring, mineral exploration, forest cover mapping, and urban planning.