[ 297 ] Geography and the World GED ® TEST SOCIAL STUDIES FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Fill in the blank with the correct term. The lithosphere is Earth’s ___________. a. landforms b. mantle c. crust d. core Fill in the blank with the correct term. The ___________ of Fire is an area of earthquake and volcanic activity that crosses continents and oceans. a. Magma b. Trench c. Slope d. Ring Fill in the blank with the correct term. As glaciers melt and recede, they leave large piles of rock and debris known as ___________. a. icebergs b. glacial lakes c. moraines d. wind erosions