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If in a population the natality is 25 and mortality is 55, in a span of 10 years. What is the growth rate (GR) of that population?

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in Biology – Class 12 by (271k points)
If in a population the natality is 25 and mortality is 55, in a span of 10 years. What is the growth rate (GR) of that population?

(a) -3

(b) 100

(c) 28

(d) -38

I have been asked this question in a national level competition.

Enquiry is from Population Growth in portion Organisms and Populations of Biology – Class 12

1 Answer

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Best answer
The correct answer is (a) -3

Explanation: As per the formula, GR = \(\frac{Natality – Mortality}{Unit \, time} = \frac{25 – 55}{10}\) = -3

The growth rate of the given area is -3 in 10 years.

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