Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.
A. By subtracting their longitudes if places are in the same hemisphere
B. By adding their longitudes if places are in the different hemispheres
C. By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
D. All the above
Answer: Option C
A. A contour is not necessarily a closed curve.
B. A contour represents a ridge line if the concave side of lower value con¬tour lies towards the higher value contour.
C. Two contours of different elevations do not cross each other except in case of an overhanging cliff.
D. All of the above statements are correct.
A. 99.345 m
B. 100.345 m
C. 100.655 m
D. 101.870 m