Why ocean are salty and great lakes are not? The source of river water are usually snow melt or rain, so it always starts off fresh. But minerals are also dissolved into the river water, so more minerals ultimately â¦ end up in the ocean.
The average annual boarding school tuition is $38,850. Of course, there are some schools with tuition as low as $10,000 and others as high as $60,000.
The College Board reports that the average cost of room and board in 2015â2016 ranged from $10,138 at four-year public schools to $11,516 at private schools. Colleges also provide room and board estimates for living off campus based on typical student costs.