Q.

What do you mean by ‘Density of Population’?

A. Ratio of people living below poverty line to total population
B. Number of persons live per square kilometre
C. Number of persons in a city
D. Number of persons living per kilometre
Answer» B. Number of persons live per square kilometre
Explanation: For humans, population density is the number of people per unit of area, usually quoted per square kilometer or square mile. The world’s population is around 7,000,000,000 and Earth’s total area is 510,000,000 square kilometers (197,000,000 sq. mi.). Therefore, the worldwide human population density is around 7,000,000,000 + 510,000,000 = 13.7 per km2 (35 per sq. mi).
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