Question

2) What is the basic difference between active and passive remote sensing?
(a) Source of energy
(6.) Direction of energy
(c.) Source of sensor
O d.) Position of sensor​

Answer 1

Answer:

Remote sensing systems which measure energy that is naturally available are called passive sensors. Passive sensors can only be used to detect energy when the naturally occurring energy is available. ... Active sensors, on the other hand, provide their own energy source for illumination