What are the similarities and differences between these three civilizations?

Why did large numbers of african migrate to the americas

In the developed world, women are increasingly more likely to delay childbirth until their mid- to late- twenties or long because

In wegener’s evidence for continental drift, continents were proposed to fit together, such as the east coast of south america with the west coast of europe. east coast of africa. west coast of greenland. lower west coast of africa.