The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target
on the terrain for studying its scattered radiance, is called:
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A.
Neutral remote sensing
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B.
Remote sensing
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C.
Active remote sensing
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D.
Passive remote sensing
Correct Answer:
C. Active remote sensing
Explanation:
Active remote sensing is the correct answer because it involves systems that generate and emit their own electromagnetic radiation toward a target. The sensor then measures the energy that is reflected or scattered back from the terrain to study its characteristics. In contrast, passive remote sensing relies on naturally occurring energy, such as sunlight, that is reflected or emitted by the Earth's surface.
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