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.
Making the world better, one answer at a time. The annual tuition rates of private American boarding high schools have a range from $7,332 to $45,000.The average annual tuition for a boarding student is $31,416.(Source: The College Board's Trends in College Pricing 2004.).aking the world better, one answer at a time. The annual tuition rates of private American boarding high schools have a range from $7,332 to $45,000.The average annual tuition for a boarding student is $31,416.