Short answerEasy2 marks
1
Study the extract of the Survey of India Map Sheet No. 45D/7 and answer the following questions:
What do you understand by: (i) 12r in the grid square 9878 and (ii) 180 in the grid square 9182.
Topic: Heights on toposheets
Previous-year question practice database
Answer
Exam answer
(i) 12r is a relative height — the sand dune in 9878 rises about 12 metres above the surrounding ground. (ii) 180 is a contour height — every point on that contour lies 180 metres above mean sea level.
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