Hachured contour lines on a topographic map represent
a. depressions, b. very small hills,
c. underwater features, d. caves

Option (A)

Explanation:

The contour lines are defined as the line of equal elevation. They are separated from one another by a fixed amount of vertical distance and they never cross cuts one another.

Both hills and depressions (basins) are represented by a circular pattern of contourc marks.

In a topographic map, the hachured contour lines indicates a depression with smaller hachure lines that points towards the lowest elevation.

Thus, the correct answer is option (A).

c. seafloor spreading occurs.

d. crust becomes molten rock.

e. denser plates slide under lighter plates.

are there any options you can choose from? ?