Different effects on the Old and New World made both have different outcomes with their population and way of life. When the Old World brought to the New World there plants and animals, they immediately had an effect on the population of the Old World and started to drop because all of them started to get diseases from the animals and plants and couldn’t stop the diseases so the population dropped like crazy. The Old World brought back crops like maize and potatoes and both those crops were used in agriculture and made the population of the Old World rise like the drop of population of the Old World. When the Old World saw horses from the New World, the Old World made those animals useful by making them a way of transportation. When the Old World came to the New World the Old World people started to deforest everywhere to use the wood for building their town or city. The New World got tobacco from the Old World, and everyone in the New World started to chew and smoke it. When you had tobacco back then, then you were symbolized as very wealthy.
Similar effects on the Old and New World made both have similar effects, but still different outcomes due to the different ways both civilizations handle their situation. The Old World and New World both took time to spread their religion. The New World and Old World were both Christians and wanted to spread their religion of Christianity. Both the Old and New World passed on new ways to benefit the population for a food surplus such as Europeans introducing new domestic animals such as cows, pigs, etc, which was helpful to the New World. The New World provided corn and potatoes, which