Question

If in a population the natality is 50 and mortality is 80, in a span of 10 years. What is the growth rate (GR) of that population?

(a) 28

(b) 100

(c) 10

(d) -3

I got this question by my college director while I was bunking the class.

My doubt stems from Population Growth topic in portion Organisms and Populations of Biology – Class 12

Answer 1

The correct option is (d) -3

The best explanation: As per the formula, GR = \(\frac{Natality – Mortality}{Unit \, time} = \frac{50 – 80}{10}\) = -3

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