Question

age structure diagrams
refer to the age structure diagrams shown above. which of the following correctly identifies the population trends represented by each diagram from left to right?
stable growth, rapid growth, zero growth
declining growth, stable growth, rapid growth
rapid growth, slow growth, zero growth
rapid growth, stable growth, declining growth

Explanation:

• Rapid growth: The first diagram has a wide base (large pre - reproductive age group), which is characteristic of a population with rapid growth as there are many individuals who will enter the reproductive stage and contribute to population increase.
• Stable growth: The second diagram has a more evenly distributed structure among the pre - reproductive, reproductive, and post - reproductive age groups (relatively similar widths at different age levels), indicating a stable population growth rate.
• Declining growth: The third diagram has a narrower base (smaller pre - reproductive age group) compared to the reproductive and post - reproductive age groups, suggesting that the population is likely to decline as there are fewer individuals to replace the older generations.

Answer:

Rapid growth, stable growth, declining growth