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State whether the following is true or false.
A gradient of 100 per cent corresponds to a slope of 90 degrees.

  • A.False only at small scales
  • B.True
  • C.False
  • D.True only at large scales

Answer: C

A gradient of 100 per cent means the ground rises as far as it advances, which is 45 degrees. A vertical face has an infinite percentage gradient, since it advances no distance at all, which is why cliffs are shown by symbol rather than by contour.

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