How did the United States unintentionally increase emigration from Latin America?

Why have the aztec ruins in mexico city not been dug up?

What was the social class pyramid during the civil war?

As with any small island country, cuba has fewer natural resources than countries such as brazil. this affects their economy in that cuba a) exports only manufactured products. b) exports more products than it imports.. c) must import more products than it exports. d) has imposed trade barriers against the united states.