They are alike because they all had a major river, they had a very natural environment that provided them with food, and they all had a division of labor. They were different because they spoke totally different languages, they had different cultures, and while Egypt and Mesopotamia were very open to others, the Indus Valley Civilization and the Yellow River Civilization were quite private.
Please don't use exactly this or you will get plagiarism marks.
Three
ways they where alike is they had a division of labor, they all had a huge
usage with water, and they believed in gods. Three ways they were different was
that they all had their own writing, they had their own certain gods, and they
had different systems of ruling.
i had this on one of my TGA's, so i hope this helps
That's my guess, this is a somewhat subjective question that really applies to your curriculum, hopefully someone who has taken the course can give a better answer.