How did brunelleschi solve his problem with the dome of the florence cathedral?

When a nation depletes its natural resources, it often experiences rapid decline because it:

Why might the spanish government have approved of the encomienda system? a the system allowed for fair treatment of all under it, leading to a happy and prosperous colony. b the system used natives as slaves which meant the government was able to maximize their profit of exported goods. c the system allowed for mostly profitable trade within the different colonies. d the system was a great example of how to successfully run a colony, making spain a world power.

What are some of the difficulties that the japanese face due to the islands' geography?