Saturday, July 11, 2009

Why is sea water salty, but the river water and lake water doesn't ?

Rain water wash the land and into the ditch, river, and lakes, while the salts transport to the sea are dissolved. but the difference in sea water is much older than the water-the other , which is about 4 or 5 billion years old compared to the million years only. Billion during the year have been experiencing water recycling continues, water vapor, which then fall to the land and flows back to sea and bring a new cargo of salt. Cycle that constantly to be sure it continues to increase the salinity in the sea.

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