Which of the following periods is known as the 'period of high growth with definite signs of slowing down'?

Correct option is C

The correct answer is (C) 1981-2011

Explanation:
• This period (1981-2011) is characterized as the period of high population growth but with definite signs of slowing down.
• While the absolute numbers continued to increase, the rate of growth started declining.
• The average annual growth rate declined from its peak in 1981.

Information Booster:
• Phase I (1901-1921): Referred to as the 'Period of Stagnant Growth' due to high birth and high death rates. The year 1921 is known as the 'Year of Great Divide'.
• Phase II (1921-1951): 'Period of Steady Population Growth'. Mortality rates fell while fertility remained high.
• Phase III (1951-1981): 'Period of Population Explosion'. A rapid fall in mortality due to better health facilities caused a massive surge in population.

Additional Knowledge:
• The slowing down in Phase IV (1981-2011) is attributed to rising age at marriage, improved literacy (especially female), and government family planning efforts.