Why Contour lines are useful ?

Show the shape of the land surface (topography) on a map.

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Joins points of equal elevation , above a given level.

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Both A and B.

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None of the above.

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Solution

The correct option is C Both A and B.
Contour lines are useful because they allow us to show the shape of the land surface (topography) on a map. The two diagrams below illustrate the same island. The diagram on the left is a view from the side (cross profile view)such as you would see from a ship offshore.

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