Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

Which change can gradually make a country's population pyramid shift from a triangular shape toward a more column-like shape?

Answer and explanation

Correct answer: Declining fertility and improved survival

A triangular population pyramid usually has a very broad base because many children are being born, and it narrows quickly at older ages because survival is lower. When fertility declines, the base becomes relatively narrower. When survival improves, more people reach adulthood and old age, so the middle and upper parts become larger. Over time, these two changes make the age distribution less triangular and more column-like.

A rapid rise in fertility would widen the base and strengthen the triangular form. Higher child mortality would narrow younger cohorts but would not represent healthy structural change, while elderly out-migration alone is not the general explanation for a column-shaped pyramid. Therefore, declining fertility combined with improved survival, option A, is the most appropriate answer.

Related tags

Population Pyramid TransitionDeclining FertilityImproved SurvivalAge StructurePopulation CompositionGeographyClass 12 McqRdgdfgdfg

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.