Why is the region of Eurasia home to 80 percent of humanity?
a. Temperate climates are inhospitable for humans and animals.
b. Temperate climates increase the likelihood of disease.
c. Temperate climates allow for easier defense against invading enemies.
d. Temperate climates support agriculture.
d. Temperate climates support agriculture.
The region of Eurasia, particularly the areas with temperate climates, have fertile soil, abundant water resources, and a suitable climate for growing a variety of crops. This has allowed for the development of agriculture, which has been a crucial factor in sustaining large populations and civilizations. Hence, this region has become the home to 80 percent of humanity.