Which of these landforms has the greatest relief? a. a large delta b. a wide valley c. a gentle hillside d. a steep mountain

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)

Based on current rates the earths human population is expected to grow how much by 2050

Why is there little farming in mongolia