Unit 1: changing population

In stage 2 of the demographic transition model, which change drives rapid population growth?

What is replacement-level fertility in high-income countries?

A country has 30 per cent of its people aged 0 to 14 and 10 per cent aged 65 and over. What is its dependency ratio?

Which is the most direct economic challenge of an ageing population?

In Lee's model of migration, what are intervening obstacles?