1. What happens when a river floods? How are natural levees created? 2. How do alluvial fans form?
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The pacific plate is an oceanic tectonic plate. how did a hot spot and the pacific plate interact to form the hawaiian islands?

Match the following items. 1 1 (4,4) 2. (-4,-2) 3. (3.-6) 4. (-4, 6) 5. (1,5)

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)