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11.Organisms and Populations
medium
Main factor in increasing the population is
A
More reproductive capacity
B
Early marriage
C
Higher natality and lower mortality
D
Suitable and favourable environment
Solution
(c) The excess of birth over deaths in a year per $1000$ in the population is called the growth rate. It is decrease in death rate and increase in birth rate which are two primary factor for the increase in human population.
Standard 12
Biology
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