GENERAL KNOWLEDGE

GK

WORLD HISTORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following did NOT increase the human population of a given area?
A
Quipu
B
Champa rice
C
Potatoes
D
Three Field System
Explanation: 

Detailed explanation-1: -When demographers attempt to forecast changes in the size of a population, they typically focus on four main factors: fertility rates, mortality rates (life expectancy), the initial age profile of the population (whether it is relatively old or relatively young to begin with) and migration.

Detailed explanation-2: -Our growing population This dramatic growth has been driven largely by increasing numbers of people surviving to reproductive age, the gradual increase in human lifespan, increasing urbanization, and accelerating migration. Major changes in fertility rate have accompanied this growth.

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