The correct answer is Option (1) → Expansive pyramid **
The description provided—a broad base and a tapering apex—is the classic definition of an Expansive population pyramid.
Characteristics of an Expansive Pyramid
- Broad Base: Indicates a high birth rate and a large percentage of the population in the younger age groups.
- Tapering Apex: Indicates a higher mortality rate in older age groups, resulting in fewer elderly people.
- Shape: It looks like a classic triangle or a "true" pyramid.
- Growth: This shape represents a population that is growing rapidly, typical of developing nations.
Comparison of Other Types
- Stationary Pyramid: Has a somewhat rectangular shape with equal percentages across age groups, narrowing only at the very top. This indicates low birth and death rates (stable growth).
- Constrictive Pyramid: Narrow at the base and the top, but wider in the middle. This indicates a declining birth rate and an aging population.
- Stable Pyramid: Similar to a stationary pyramid, where fertility and mortality rates remain constant over long periods.
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