Cause: Ming leaders banned ships with more than two masts. There would be no further construction of ships. Effect:

The main effect of ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus.

Explanation:

the u.s. department of labor is a cabinet-level federal agency that supports the american labor force. it has three overall functions. first, it protects the rights of workers and retirees. second, it provides job training. third, it provides statistics related to working, prices, and income.