2. what had driven the conquistador francisco pizarro across the atlantic ocean in 1532? how many ounces of sliver were extracted from south america over 250 years of spanish rule?

3. why was the gold and silver from the new world unable to halt spain's economic decline in the 16th and 17th century? what did the spaniards never get (about money)?

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.

Can someone answer all these questions i need it done by tonight. once again

Plz hury on a timer which statements explain what happens at deep-ocean trenches? check all that apply. crust is formed. mountains are formed. seafloor spreading occurs. crust becomes molten rock. denser plates slide under lighter plates.