The triangular shaped age-sex pyramid with a broad base is a typical example of which one of the following countries?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Nigeria
A triangular pyramid with a wide base shows an expanding population, with many people in the lower age groups because of high birth rates.
Note: This question is taken from the pre-rationalised NCERT book. The latest edition (2026-27) does not have this part. An extract of the pre-rationalised NCERT book is given below for the benefit of students.
Pre-rationalised NCERT: “Expanding Populations The age-sex pyramid of Nigeria as you can see is a triangular shaped pyramid with a wide base and is typical of less developed countries.”
Fig. 3.1: Expanding Population |
