“I am extremely desirous to acquire California…. If unfortunately, you should fail to effect a satisfactory adjustment of the pending differences between the two countries…I will call on Congress to provide the proper remedies.”
What two countries is Polk talking about?

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

answer: the ocean

explanation: if you map out 30 n and 40 n latitude, you will get the ocean

the poor lived on the docks by the sea, and the wealthy lived in highly populated urban areas. that is the answer