Answer:
OD is the correct answer Hope you get a good test grade It is Use a barter system .
Explanation:
Homogeneous region is a region where the people are similar. The answer to your question will be whichever one mentions people being the same.
The west African Kingdom of Mali grew in wealth and power by controlling the trading of gold and salt.
WW1 was the first war to abandon the line styles of "Noble Fighting" found in contemporary Europe. In the old style soldiers walked in line and proceed to shoot each other till the other fled or simply all died. In the horrific new war trenches were dug and six machine gunners could hold off and assault of thousands of contemporary linemen. Doing so led to the horror of trench war which was bloody much more violent and dark.
It was much lighter and easier to carry unlike the coins they normally used.
