Why is the power in the United States divided between several branches?
(History and geography)

helps to ensure that no one branch is more powerful than another.

Explanation:

It is like this to help ensure that no one branch is more powerful than another. Therefore making them all equal and not one is more powerful. I hope this helps you.

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increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b