"What were some of the weaknesses of the Articles of Confederation that resulted in Congress calling for a Constitutional Convention

Weak military, states inability to tax people, and therefore support themselvces as a nation and repay soldiers. The economy was also weaker because tariffs weren't imposed merchants.

Explanation:

Think shay's rebellion too. if u explain that it'll help

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration