They formed in river valleys, that is where all of the first one's formed.
The correct answer is B. It has caused spending by interest groups to increase. Since the ruling, multi-billion corporations and other interest groups have funneled unprecedented amounts of money to the parties or politicians that are susceptible to further their interests via the Super PACs (that are not allowed to spend money directly in the politicians' campaigns but can spend unlimited amounts of funds independently and in favor of the party/politician of their choice).
So that way they didnt have to keep taking longer trips to get waterr
Answer:
Llano Basin
hope this helped
