Question

The contour interval of a topographic map is 50 feet. How many contour lines would be drawn between sea level and an elevation of 175 feet?

Answer 1

If the contour interval of a topographic map is 50 feet, THREE contour lines would be drawn between sea level and an elevation of 175 feet.

Answer 2

Option (B)

Step-by-step explanation:

The contour lines are very important to understand the elevation of a particular location and they are the important features in a topographic map. These contour lines are separated from one another by a fixed amount (value).

In the given condition, the contour interval is 50 feet.

There will be 3 contour lines between the mean sea level and an elevation of 175 feet. These 3 contours will be representing the heights 50 feet (first contour), 100 feet (second contour) and 150 feet (third contour) respectively.

Thus, the correct answer is option (B).