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 National Association of Independent Schools reports its members charge an average median tuition for first or third grade of $17,669 a year for day students and $43,680 for residential (boarding school) elementary students. However, costs can be considerably higher, particularly for specialized programs. For example, at Landmark School in Massachusetts, which specializes in students with learning disabilities, 2012-13 tuition was $48,200 for day pupils and $64,200 for residential students.