To separate liquids in a mixture of different liquids, each having different boiling points, one would use the separation technique of: filtration evaporation distillation chromatography

Answer;

-Distillation

Explanation;

Distillation is a  technique that can be used to physically separate most homogeneous mixtures based on the difference in the boiling points of the substances involved.

A good example;  A flask hold liquids A, B, and C in a homogeneous mixture. The boiling points of A, B, and C are 130 C, 65 C, and 71 C, respectively. The flask is heated to 65C until all of liquid B is filtered out. The remaining mixture is heated to 71C until all of liquid C is filtered out, and only liquid A is left in the flask.

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.