What is one major advantage of creating a division of labor in a business?

The greatest advantage of division of labour is that it increases immensely the productivity per worker.

Explanation:

As a result of the treaty with Spain (that ended the Spanish-American War), Puerto Rico, the Philippines and Guam came under American control.

Explanation:

The Spanish-American War confronted Spain and the United States in 1898, as a result of the US intervention in the Cuban War of Independence.

At the end of the conflict Spain was defeated and lost by the island of Cuba (which was proclaimed an independent republic, but remained under the protection of the United States), as well as Puerto Rico, the Philippines and Guam, which became colonial dependencies of the United States.