Yes, it is normal.
Salt water contain salt, fresh water is practically pure.
Water that does not contain salt, and is not salt water.
salt water
Seawater because it contains salt which makes the water more dense than water which does not contain salt.
Fresh water is water that does not contain any salt content. Oceans and some lakes contain salt. Fresh water sources include most creeks, streams, lakes, and rivers.
Fresh and salt water are very different for one key reason, fresh water doesn't contain salt and salt water obviously does. There are different flora and fauna in fresh and salt water for this reason.
salt water conducts more electricity than fresh water because it contains great amounts of ions which can conduct a lot of electricity
All seas have salt water because they have sand which has salt.
http://wiki.answers.com/Q/Why_sea_water_salt_contain ?
It is because oceon contain more salt than fresh water and oceon is very cold . hope i answer your question!
Well fresh water is any type of water that does not contain salt. It's true you can't find fresh water in the ocean, but you can find it undergorund and in lakes, rivers, and streams. There are some lakes that do contain salt such as the Salt Lake in Utah.
Salt water is more dense than fresh water. So when you're in salt water you float more than when you are in fresh water