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Which of these can be read directly from a topographic map without any calculation?

  • A.the gradient of a named slope
  • B.the area of a lake shown on the sheet
  • C.whether two summits are intervisible
  • D.the height of a labelled spot height

Answer: D

The spot height is printed as a number and needs nothing further. Gradient, area and intervisibility all require measurement and working before an answer can be given, and the last of them needs a profile drawn along the line of sight.

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