There use of mathematics advanced tools / weapons <span />
Answer:
Democrats agreed that Hayes would become ... South with Reconstruction-era Republican governments still in power
Answer:
Separation of powers is a doctrine of constitutional law under which the three branches of government (executive, legislative, and judicial) are kept separate. This is also known as the system of checks and balances, because each branch is given certain powers so as to check and balance the other branches.
Explanation:
I believe the answer would be D, cognitive abilities. The reason for this is because cognitive abilities are brain-based skills needed to carry out any task from the simplest to the most complex.
