The major ingredient of magma is a. pahoehoe. b. silica. c. dissolved gases. d. obsidian.

Which of the layers of the earth has the following three characteristics? i. it is a solid outer layer. ii. it is between 3 and 30 miles thick. iii. it is separated into plates. a. the outer core b. the inner core c. the mantle d. the crust

Following lenins death, who took control of the soviet union

Agriculture is a. slowly being replaced by mining as the primary industry in southern africa c. not possible in southern africa because of drought b. the primary industry in southern africa d. none of the above