Answer:
Yes
Explanation:
The increasingly sophisticated system of writing that developed also helped the civilization develop further, facilitating the management of complex commercial, religious, political, and military systems. The earliest known writing originated with the Sumerians about 5500 years ago.
The marginal cost of production at 300 leather jackets will be $35.
Rivers help geographer to understand how civilizations developed in several main ways.
1. If there is a river near an old civilization, you know where the civilization got their water from.
2. The civilization could have used the river for exporting and importing goods.
3. The civilization could have gone extinct or failed because of the river flooding.
