Give the technical term for the statistical study of a human population of a region.

What was directly responsible for the rapid rise of the world population in the twentieth century?

Birth rate is the number of live births

Name two surgical techniques (one for the human male and another for the human female) that can be used to prevent pregnancy.

Write true (T) or false (F) for the following:

(a) Vasectomy is the surgical method of sterilization in human males……………………..

(b) Tubectomy is the placing of a diaphragm on the cervix……………………………