The evolution of economic organization from hunter-gatherer to settled agriculture to more complex civilizations proceeded at vastly different paces in different parts of the world.
a. explain why the pace of development on the eurasian landmass was so much more rapid than in africa and the americas.

The continents of europe and asia brought on more challenges to the people living in them, due to that, they were forced to develop new tech and other things in order to survive from nature, animals, and each other. for example, the europeans created the musket, a ranged weapon that used gunpowder, created by the chinese. the nations and monarchies of europe were constantly at war with each other, to weapons technology was always evolving. so when they arrived in the new world, the native americans couldn't compete against the musket, and they started to trade for them.