At what point do tornadoes usually form? a) where two cold fronts meets at obtuse angles b) where a warm, dry air mass meets a cold, moist air mass c)where a cold , dry air mass meets a warm ,moist air mass d) where two warm air masses meet

How many inches of snow did any of you guys get last night?

Where would you be most likely to find a freshet?

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)