How did the open door policy and dollar diplomacy affect the economy in the us

How did the relationship impact the desire of christian nations in the iberian peninsula to spread christianity?

What was the historic border between the united states and mexico?

Humans during the paleolithic era used fire for each of the following purposes except a. for cooking meat b. for use as a weapon c. for heat and warmth d. for treating animal hides select the best answer from the choices provided