Population
India is the world's most populous country, and its numbers keep changing. Chapter 6 of the NCERT Class 9 Geography textbook, Contemporary India Part One, presents census data on size, growth, density and distribution, and explains age structure, sex ratio, literacy and occupational work. It traces causes of rapid growth, the National Population Policy's goals, adolescent health, and why skilled, healthy people matter more than mere headcount for development and planning.
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