B. An oceanic plate sinks beneath another oceanic plate at a convergent boundary
According to the World Bank and United Nations poerty threshold/borderline, that is, the minimum level of income deemed adequate in a particular country. In 2005, the World Bank came out with a figure (revised largely due to inflation) of $1.25 a day at 2005 purchasing-power parity (PPP), and in 2015 the World Bank updated the international poverty line to $1.90 a day.
Based on the presentation of the World Bank, (B) Maria earns $1.50 per day and (D) Tim earns $ 1.00 per day will be classified as poor.
Less children are being born due to increased efforts to lower the CBR (crude birth rate) and improve contraceptive methods. This results in less children being born, meaning that the older people are increasing in dependency (because there's more older people in the older generations vs the newer)
