Question

match the stage of the demographic transition model to its population pyramid shape: wide base, slightly wider middle; narrow base, straight sides; narrow base, bulging middle, narrow top; narrow base, wider middle; very wide base, narrow top

Explanation:

To solve this, we recall the Demographic Transition Model (DTM) stages and their population pyramid shapes:

1. Stage 1 (Pre - Industrial): Very high birth and death rates. Pyramid has a very wide base, narrow top (high youth population, low life expectancy).
2. Stage 2 (Transitional): High birth rate, falling death rate. Pyramid has a wide base, slightly wider middle (growing youth population, improving life expectancy).
3. Stage 3 (Industrial): Falling birth rate, low death rate. Pyramid has a narrow base, bulging middle, narrow top (declining youth, growing working - age population).
4. Stage 4 (Post - Industrial): Low birth and death rates. Pyramid has a narrow base, straight sides (stable or declining population, low youth, high life expectancy).
5. Stage 5 (Advanced): Very low birth rate, low death rate (may have rising death rate in some models). Pyramid has a narrow base, wider middle (aging population, more elderly).

Matching:

• Very wide base, narrow top: Stage 1 (Pre - Industrial).
• Wide base, slightly wider middle: Stage 2 (Transitional).
• Narrow base, bulging middle, narrow top: Stage 3 (Industrial).
• Narrow base, straight sides: Stage 4 (Post - Industrial).
• Narrow base, wider middle: Stage 5 (Advanced).

If you need to match a specific stage (e.g., Stage 1 → Very wide base, narrow top; Stage 2 → Wide base, slightly wider middle; etc.), use the above correspondences.

For example, if matching Stage 1:

Stage 1 of DTM has high birth/death rates, so pyramid has very wide base (many youth) and narrow top (few elderly).

Answer:

Very wide base, narrow top (matches Stage 1)

(Adjust the answer based on the specific stage you are matching. If no specific stage is given, the above explains the general matching.)