A) Population change = (Birth + immigration) - (death + emigration)
B) Population change = (Birth + immigration) + (death + emigration)
C) Population change = (Birth + emigration) + (death - inmigration)
D) Population change = (Birth - immigration) - (death + emigration)
Correct Answer: A
Solution :
The density of a population in a given habitat during a given period, fluetrates due to charge in four basic process, i.e,, rataiaty and immigration contribute an increase in population and mortality and emigration express decrease. So, if N is the population density at time t, then its density at time t + 1 is.\[{{N}_{t+1}}={{N}_{t}}+[(B+l)-(D+E)]\]Population density will increase it the number of births plus the number of immigration \[(B+l)\] is more than the number of deaths plus the number of emigrants \[(D+E)\], otherwise it will decrease.
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