Geography, asked by bhadhaonnagarsevak, 5 hours ago

the reading first enter in the field book of levelling​

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Answered by Anonymous
26

Answer:

Two consecutive readings from the same instrument positiongive the difference of levels between the points. If the 2nd point is lower, there is a fall or otherwise there is a rise. Thus the rise or fall of each point with respect to the immediately preceding station can be determined and entered in the field book.

Explanation:

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