"<span>a. During the two centuries following the discovery of the New World, over 90% of the native population were killed by disease and warfare" would be the best option but it should be noted that the 90% figure has been disputed recently.</span>
Building techniques improved, iron became more common, and hydraulics were used to dig riverbeds deeper. So less floods happened that destroyed farms and endangered lives.
I'm pretty sure the answer is Detroit
Answer:
Modern birds descended from a group of two-legged dinosaurs known as theropods, whose members include the towering Tyrannosaurus rex and the smaller velociraptors.
Thanks!
Answer:
the answer would be sheep
