The correct answer is
<span>A: they depended on their physical environment to provide food.
They used stone made tools, which is why it was called the stone age. They would hunt and gather food and live like nomads, moving to a different area when there was no more food. When they discovered metal tools they started the agricultural revolution which ended the nomadic period.</span>
Before Illinois became a state it was known as the Illinois Territory.
Some civilizations were a lot farther in technology to actually be able to become a empire and some also had a great amount of leadership
Hope this helps
