"Dave Liquorice" wrote in message
ll.com...
On Tue, 10 Jan 2006 14:54:25 -0000, JamesB wrote:

Because only the water evaporates from the sea surface, not the
salt, which is not volatile.

I knew it would be a simple answer

He he, who didn't do chemistry at school then?

One of my best memories of school chemistry is on distillation. The
double period practical was distilling a mixture of H2O and C2H5OH.
Hic... Bet they don't do that these days. B-)

I did, I just forgot most of it!
James