What is the present rate of growth of the population of the world and of our own country?

Define the following terms:

(a) Birth rate

(b) Death rate.

(c) The rate of growth of population.

(d) Population density.

(e) Exhaustible resource

Mention whether the following statements are true (T) or false (F). Give reason in support of your answer.

(a) The cow was the first domesticated animal. (T/F)

(b) Rapidly growing industries favoured population rise. (T/F)

(c) Present human population growth is following the arithmetic progression. (T/F)

(d) Birth rate (natality) is the number of live births per hundred people of population per decade. (T/F)

(e) Tubectomy is a popular surgical method of contraception in human males. (T/F)

What are the age restrictions for marriage by law for boys and girls in India?

Give two advantages to a small family.