True or False: Fossil Fuels are a renewable energy source. a. this is TRUE because fossil fuels are made from natural materials

b. this is FALSE because fossil fuels are "used up" and cannot be replaced as quickly as we are using them

b even though there made from natural material there not renewable

Explanation:

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.