Question

Notes for chapter population according to class 9th

Answer 1

Population: In sociology, population means collection of human beings.

Demography: It is a branch of social science which deals with statistical study of human population.

Census: An official enumeration of population which is done periodically is called census. The first census in India was conducted in 1872, but the first complete census was conducted in 1881. After that, the census has been done every ten years.

POPULATION SIZE AND DISTRIBUTION

According to 2011 census, the population of India is 1.21 billion.

India’s population is 17.5% of the world population, while the area of India is just 2.4% of the total area of the world. India is projected to surpass China to become the most populous country of the world by 2025.