Elements of Remote Sensing

151

The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called :

A. spectral variation
B. spatial variation
C. temporal variation
D. None of these .

152

The refractive index of the ocean water:

A. increases with salinity
B. increases with temperature
C. decreases with salinity
D. decreases with temperature

153

Which one of the following statements is correct ?

A. Snow albedo falls at all wave length with the increase of grain size
B. The effect of grain size on reflection is maximum in the near-IR region
C. The effect of grain size on reflection is low in the visible region of the spectrum
D. All of these