If a historian wanted to determine wether iron tools could be found in the ruins of an ancient African city, which kind of expert should he consult

the correct answer is b, "fertility rates are increasing, so populations will grow more quickly in the future."

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.