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The 20 individuals are born per year in a population, and the mid-year population is 5000. What is the birth rate of that area?(a) 20(b) 1.0(c) 4(d) 2This question was posed to me during an interview for a job.Enquiry is from Population Growth topic in chapter Organisms and Populations of Biology – Class 12

Answer» CORRECT answer is (c) 4

The explanation: As per the FORMULA, Natality = \(\frac{Number \, of \, DEATHS \, per \, year}{Mid-year \, population}\) x 1000 = \(\frac{20}{5000}\)1000 = 4

The BIRTH rate of the given area is 4 per year.


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