Why was the allied advance on japan so difficult? (a)the allies did not have enough resources to capture japanese-held islands. (b)the allies had to win the war in europe before sending troops to the pacific. (c)japan had strong support from germany and italy. (d)japan controlled most pacific islands scattered over a wide area.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.