Q. Explain Remote sensing technique?

Remote sensing is a science or an art of obtaining the information about an object, area or a phenomenon through analysis of data acquired by a device that is not in contact with the object, area or the phenomenon under investigation. For example, reading is an art of remote sensing where the eyes act as sensors, which respond to the light reflected from the page of written material and collect the data, which is analysed in the brain to obtain the information.