18. The city of Rome based most of its economy during the Middle Ages on (Lesson 4.02)
trade with the Middle East
fur trapping
conquering other empires and taking their gold
Catholic pilgrimages to religious sites

Which statements explain reasons why unconformities occur? check all that apply. rocks along a fault break and move. igneous rock forms at earth’s surface. rocks erode and sediment is deposited. no sediment is deposited over a long time. igneous rock forms between sedimentary layers.