Question

Which of the following formula correctly defines growth rate (GR)?

(a) GR = \(\frac{Natality – Mortality}{Unit time}\)

(b) GR = \(\frac{Natality – Natality}{Unit time}\)

(c) GR = \(\frac{Mortality – Natality}{Unit time}\)

(d) GR = \(\frac{Mortality – Mortality}{Unit time}\)

The question was posed to me in an online quiz.

Query is from Population Growth in chapter Organisms and Populations of Biology – Class 12

Answer 1

Correct option is (a) GR = \(\frac{Natality – Mortality}{Unit time}\)

For explanation I would say: The growth rate. It is the increase in population due to an actual number of individuals added to the population. Usually in India, the growth rate is calculated every 10 years.