Why did europeans want to find a water route to asia

What are the six basic purposes of government as outlined in the preamble to the constitution?

Between 1518 and 1548, spanish conquistadores conquered most of the new world, motivated by the a) desire for scientific knowledge. b)  to urge to claim more territory for spain. c) belief that an all-water western route to the orient existed. d) desire to advance national glory, serve god, and seek personal wealth.

Marcus wants to overcome his internalized racism. which action will him do so?