question_answer

Total population, Average Density of population and Urban Population in India from 1901 to 1991.

Year	Total Population in Millions	Density of Population per sq. km.	Percentage of Urban Population to Total Population
1901	238	77	10.84
1911	252	82	10.29
1921	251	81	10.18
1931	279	90	11.99
1941	318	103	13.86
1951	361	117	17.29
1961	439	142	17.17
1971	548	177	19.91
1981	685	221	23.34
1991	846	274	25.72

                                                                                                                                                                        (a) Name the two decades when population was rather stable. Give a reason for the decrease in population in 1921. (b) State three decades which showed moderate growth rate. (c) Mention the three decades with very fast growing population. Calculate the total net addition for 30 years. (d) Identify two separate decades which had sudden spurts in urban population. Give possible reasons thereof.                                                            [NCERT]

Answer:

(a) The two decades when population was rather stable: 1901-1911 and 1911-1921. Population showed decline in 1921 due to world war, famines and lack in medical facilities. (b) The three decades which showed moderate growth rate are: 1931-1941, 1941-1951, 1951-1961. (c) The three decades with very fast growing populations are: 1961-1971, 1971-1981, 1981-1991. The net addition for the 30 years was 407 million. (d) The two decades which had spurts of urban population: 1941-1951, 1971-1981. In 1941-1951, it was due to independence. In 1971-1981, it was due to growth of industries.