Answer:
The Spanish had discovered a civilization that was richer in Gold than theirs
Step-by-step explanation:
The Spanish explorers set out from Europe to the new world in search of Gold , silver and other treasures so that they could take them back home and enrich themselves, also they wanted to conquer new territories for the Spanish crown as well.
The new world included Mexico, Costa-rica and Cuba. they found Gold in large quantities and other precious metals much more than they had in Spain so the statement that characterizes the Spanish exploration is " the Spanish had discovered a civilization that was richer in Gold than theirs"