Please help! Even a little help would be great!

Which european country was directly in the middle of many of the routes used in the crusades and benefitted most from increased trade? england spain germany italy

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

Prior to the presence of europeans on the continent, the slave trade in africa a) did not exist in any form. b) was limited to internal trade only. c) included the trans-saharan and indian ocean slave trade. d) was rarely needed due to the lack of an agricultural economy.