Question

interpreting contour lines and topographic map symbols
use the drop - down menus to answer the questions about the topographic map.
the value of the index contour line at point a is
feet.
the symbol at point b indicates a
area.
the elevation of point b is
feet.

Explanation:

Step1: Identify index contour at A

Point A is directly on the labeled contour line marked 7000.

Step2: Identify symbol at B

The symbol at B is a standard topographic map symbol for marsh/wetland.

Step3: Find elevation of B

Point B lies on the labeled contour line marked 6800.

Answer:

The value of the index contour line at point A is 7000 feet.
The symbol at point B indicates a wetland/marsh area.
The elevation of point B is 6800 feet.