A. Agriculture? Cuz farmers were able to transport crops cheaper faster farther and in greater amounts without them spoiling.
Native Americans' population declined because of infighting within the tribes, because of wars with the colonists but mostly because of the new diseases brought to their land by the colonists that their body was not use to and that their immune system could not fight off. -- Also because of population resulting in spreading of diseases -equals more death due to undeveloped medical tech
<span>In AD 476, Emperor Rolulus Augustulus, at 14 years old, was the ruler of the Western Roman Empire. During this time a Germanic general named Ocoacer overthrew the emperor. This was the last time an emperor ruled over Rome which is why historian consider this year the end to the Western Roman empire.</span>
Could you post the answers as well?
Wild animals would come to drink, vultures would circle, and it would get too crowded along the river.