His unknown secret weapon was disease.
When Cortez and his army invaded aztecs, a couple of his men were infected with smallpox.
Since the aztecs did not possess any immunity for it, the majority of their people were weakened by the disease, which make it easier for cortez army to conquer their region.
The right-brain vs left-brain theory has lead many people to believe that one side of their brain is dominant over the other. This would mean that they would either be “left-brained” or “right-brained”. Thus attributing to left being rational and right being artistic.
This is like: logical is to artistic
Child directed speech is the unique way that parents (and others) talk to babies.
Answer:
A. It was a league of friendship, in which the states were sovereign and the the national government had only weak powers
Explanation:
The Articles of Confederation were a hot mess because there were EXTREMELY few Federal (or centralized powers) For example, the state of Georgia could decide the didn't want to pay taxes and New York could make it's own independent trade agreements with China.