GEOG 140 Lecture Notes - Lecture 2: Doubling Time, Haemophilia, Malaria

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An essay on the principles of population (1798) warned that population was growin supply i. ii. More countries throughout the world started to rely on other means o food ii. The number of years it takes for a population to double in size. A decrease in doubling time means comparative rapid growth. An increase in doubling time means comparative slower growth. Diseases that can affect life expectancy and mortality. Spread through some kind of intermediary, such as an insect (ex: Over the history of the world, malaria has killed more peop disease i) Spread directly from person to person (ex: hiv/aids) Diseases of middle and old age (ex: heart disease) Passed through genes from one generation to the next (ex: hemophilia) High wing faster than food ns of acquiring their (ex: malaria) people than any other a) b) Ex: china has more than 1. 35 billion residents. Population concentrated in eastern cities and along major rivers" basins i.

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