Was important in providing labor to early mesopotamians. a. discovering bronze b. forming settlements c. inventing the wheel d. domesticating animals

The correct answer is B) Forming settlements. This is due to the fact that early Mesopotamian civilizations settled in what is known as the “Fertile Crescent”, which was the only fertile land in the ancient Middle East, surrounded by desert. This allowed them to develop agriculture as their main sustenance, but it also was reason why several invasions occurred in this land.

1) union forces launched a surprise attack.

2) more confederate troops arrived by train.

3) union forces retreated.