Population Pyramids Reveal Age Distribution and Life Expectancy

Steps:

• Examine the shape: Broad base indicates high birth rates; narrow top shows high mortality in older ages.
• Compare pyramids: Country 1 likely has a more rectangular shape with fewer deaths at older ages than Country 2's triangular shape.
• Infer life expectancy: Rectangular pyramids suggest people live longer, reaching higher ages evenly.
• Deduce differences: Country 1's structure implies better survival to old age compared to Country 2.

Why B is correct:

• Life expectancy is indicated by the pyramid's width at older ages; a broader elderly population in Country 1 shows higher average lifespan per demographic analysis.

Why the others are wrong:

• A: Total population size requires absolute numbers, not just pyramid proportions.
• C: Death rates relate to base width (births) and overall narrowing, but pyramids alone don't specify rates without scale.
• D: Childcare spending isn't directly visible in age structures; it affects births but lacks evidence here.

Final answer: B