The gap between birth rate and death rate per 1000 mid-year population of a given region is known as
A. Population rate
B. Natural growth rate of population
C. Birth and death rate of population
D. Population increamental ratio
Answer: Option B
A. Population rate
B. Natural growth rate of population
C. Birth and death rate of population
D. Population increamental ratio
Answer: Option B
The years 1700, 1800 and 1900 were
A. Leap years
B. Not leap years
C. Famine years
D. Years of natural calamities
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