_______ is a line lying throughout on the surface of the ground and pr – McqOptions

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1.	_______ is a line lying throughout on the surface of the ground and preserving a constant inclination to the horizontal.
A.	Contour gradient
B.	Contour interval
C.	Contour slope
D.	Contour inclination
Answer» B. Contour interval

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The indirect method serves as a basis for the interpolation of contours.
The indirect method, guide points need not necessarily be on the contours.
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Indirect method serves as a basis for the interpolation of contours.$
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If the inclination of contour gradient is given, its direction from a point may be easily located either on the map or on the ground.