What can a scientist learn from a trilobite fossil found in layer of rock? a: that no other types of fossils will be found in the area b: the age of the layer of fossils will be found in c: that the area near the fossil was dry land d: the temperature of the trilobite when it became a fossil

Which statement best describes evidence of a mulitcultural mix in east africa? a. because of what he learned during his pilgrimage to mecca, mansa musa was able to build a center of islamic scholarship. b. the traders of ghana brought back with them slaves from the mediterranean who taught the ghana rulers about christianity. c. clans were made up of lineages that were descendants of multiple ancestors from different regions of africa. d. swahili became a language made up of words spoken by traders along the coast of the indian ocean.