When visiting the tanzanian, marcus joined a tour group on a hike up mt. kilimanjaro. when he began his hike, marcus was hot, though he dressed in shorts and a t shirt. after reaching the top, marcus was cold and noticed snow on the ground. what knowledge would have marcus better prepare for his hike

d. stage 4

explanation:

the existence of some kind of demographic transition is widely accepted in the social sciences because of the well-established historical correlation linking dropping fertility to social and economic development.[1] scholars debate whether industrialization and higher incomes lead to lower population, or whether lower populations lead to industrialization and higher incomes. scholars also debate to what extent various proposed and sometimes inter-related factors such as higher per capita income,lower mortality, old-age security, and rise of demand for human capital are involved.[2]

landlessness of ordinary people

^^something like that^^^