Question

What are contour lines?
A) Lines drawn on a map connecting points of equal elevation.
B) Lines drawn on a map connecting points of unequal elevation.
C) Lines drawn connecting the Sun and the Earth.
D) None of the above.

Answer 1

Hint:
-Contour lines are critical to understanding the elevation status of a particular land formation.
-Contour lines join points of identical and constant values.
-For example, contours on an elevation have constant heights that are the same on each line.

Complete answer:
Contour lines are lines drawn on a topographic map connecting points of equal elevation.They are also called “level- lines”. Contour lines are useful because they depict the shape of land used by countless professions- foresters, hunters,miners,engineers etc.

Also, Contour line, a line on a map reflecting an imaginary line on the surface of the ground, all points of which are at the same height above the data plane, typically mean sea level.

A contour interval is the vertical distance in elevation between contour lines.
Index contour are bold lines that appear at every fifth contour line.

Now let us look into the given option
A) Lines drawn on a map connecting points of equal elevation is the correct option.
B) Lines drawn on a map connecting points of unequal elevation is the wrong answer because contour lines are identical.
C) Lines drawn connecting the Sun and the Earth are the wrong answers because they are not relevant to the contour lines.
D) None of the options is the wrong answer.

Hence the correct answer is option ‘A’.

Note: If you follow a single contour line, you walk at the same elevation all the way around until you return to your starting point. Contour lines do not cross one another. The closed contour lines indicate a mountain.