<span>"The world would be better off if political boundaries didn't exist" is an indefensible claim. The others can be proven or at least debated over because at some point in time all of them have true and false. For instance, the majority of congress and the President have been from the same political party. Also, the majority of congress and the President have NOT been from the same political party. Therefore, you can compare the difference between true and false. Political boundaries have always existed. As a result, you cannot comfortably compare it to anything else.</span>
The Doppler ultrasound test uses reflected sound waves to figure out how blood flows throughout the body.
Answer:
A
Explanation:
to keep the British away from the Ohio River valley
