What is ment by distribution of goods? how does it benefits the costumes?

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.

How we perceive, use, study, structure, interpret, and react to messages of time is referred to as: ?

Whether or not a given study has the possibility of causing harm to participants: