Rapid increase in population is the main obstacle in economic growth of countries of world. Recent increase in birth rate and longevity with decrease in death rate and infant mortality are some key reasons of high growth rate in most populated countries of world. Advancement in medicine, agricultural productivity and sanitation also contribute to large population in the world. China and India are two most-populated countries in the world and together constitute about 37% of the world’s population. Lets take a look at pie chart showing percentage of top ten most populated countries.
% age of World