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Among below given statements, only one statement is correct. Select the correct statement.

  • A.A contour is not an imaginary line.
  • B.Elevation of each and every point on a contour line remains exactly same.
  • C.Two contours can easily cross each other.
  • D.All of the above statements are correct.

Answer: B

The correct statement is that the elevation of each and every point on a contour line remains exactly same.

A contour is an imaginary line joining points of equal elevation on the ground surface, which is its definition.

That makes the other statements wrong. A contour is an imaginary line, drawn only on maps. Two contours of different elevation cannot cross, because a point cannot have two elevations at once; they merge only on a vertical cliff and appear to cross only at an overhang. Since those statements are false, "All of the above" is false too.

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