EXERCISE 28: Contour Lines Name Section EXERCISE 28 PROBLEMS The questions in th

Question

EXERCISE 28: Contour Lines Name Section EXERCISE 28 PROBLEMS The questions in this exercise are based on this contour line map with elevations shown in feet. . North is to the top of the map. Streams are shown with dashed lines. A graphic scale for measuring horizontal distances is shown below the map. . te elevations between contour lines to the nearest half-contour interval; assume that the top of a hill is one-half-contour interval higher than the highest contour line shown. 750 Pine Hill Rock Hill 1000" F. 1000 1000 2000 3000 FEET

Explanation / Answer

1. The contour interval is 50 feet.

5 contour lines lie in between 500' and 750' contour lines. Thus by dividing the gap (750' - 500') by 5, we get the contour interval.

2. The elevation of point A is above 750'.

Point A is representing a hill by closed contour. Therefore it will have higher value than the surrounding contour.

3. The elevation of point B is in between 650' to 700'.

As point B lies in between the 650' and 700' contour so the value must lie in between the two values.

4. The elevation of point C is in between 550' to 600'.

Because of the same reason as point B, the elevation of point C is 550'-600'.

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