I believe the answer is education.
In about 3200 BC the two earliest civilizations develop in the region where the southwest Asia joins Northwest Africa. Great rivers are a crucial part of the story. the Sumerians settle in what is now southern Iraq, between the mouths of the Euphrates and the Tigris
They can catch fire easily due to the materials that are used to make them
I don’t see any statements provided perhaps write them below in the comment section?
Answer : I believe it was 10%
I hope I can help you :)
Have a good day :)
