Question

The first civilizations formed:

1. near river valleys.
2. mostly in the Americas.
3. at higher latitudes.
4. All of these choices are correct.

Answer 1

Sumer, located in Mesopotamia, is the first known complex civilization, developing the first city-states in the 4th millennium BCE. It was in these cities that the earliest known form of writing, cuneiform script, appeared around 3000 BCE.

Answer 2

near river valleys

Additional information

because ancient people needed waters so civilizations formed near river valleys