Why did the earliest civilizations appear in areas like mesopotamia and the indus valley?     a. because these areas had the most domesticated animalsb. because these areas were isolated from other regionsc. because these areas were far away from oceansd. because these areas were near rivers and fertile soil

The earliest civilizations appear in areas like Mesopotamia and the Indus Valley "because these areas were near rivers and fertile soil."

Generally, history has shown that the early civilization of humans began when they were able to practice agriculture, settle in one place, and raised families.In Mesopotamia and the Indus Valley area, the availability of rivers and fertile soil helps promotes agriculture and medication during drought season.This led many people to live and stay in these areas to raise families.As families grow in numbers, the need for governance and rule of law becomes significant in their lives, hence, civilization was able to develop.

Therefore, in this case, the correct answer is option D "because these areas were near rivers and fertile soil."

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