Diseases decreased life expectancy by 10% and men outnumbered women, population growth was slow.
Explanation:
In earlier times the climate of places was warm and had swamp type environments, which led to the diseases and this impacted the life span of the people and also affected their livelihood and immigration was the only way to sustain the population.
Crops like tobacco were not affected by the changes in climate and thus became a cash crop of the entire region.
