2007-05-01 04:27:20 · 5 answers · asked by seema k 1 in Science & Mathematics ➔ Earth Sciences & Geology
when rain falls on the land, it dissolves a little of the salts from the ground and rocks. only a tiny amount. the water then flows in rivers to the sea, taking the dissolved salts along with it.
when the sea water evaporates to form clouds, which then falls as rain, it leaves the salts behind as they are heavier, and the sea gets a tiny bit saltier. repeat this process for a couple of billion years, and we have a salty sea.
2007-05-02 23:15:11 · answer #1 · answered by simon r 3 · 0⤊ 0⤋
Rivers carry salt into the sea, but evaporation leaves it behind.
But it doesn't take billions of years.
If the sea had started with no salt then it would reach its current salinity in about 60 million years.
This is an upper limit - may have been salt to begin with. And of course we cannot measure the rate that salt has entered the seas in the past.
It is however, one of many evidences that the earth is not ancient.
http://www.creationontheweb.com/content/view/578
Many processes (see below) bring salts into the sea, while they don’t leave the sea easily. So the saltiness is increasing steadily. Since we can work out how much salt there is in the sea, as well as the rates that salts go into and out of the sea, we should be able to calculate a maximum age for the sea.
In fact, this method was first proposed by Sir Isaac Newton’s colleague, Sir Edmond Halley (1656–1742), of comet fame.2 More recently, the geologist, physicist, and pioneer of radiation therapy, John Joly, (1857–1933) estimated that the oceans were 80–90 million years old at the most.3 But this was far too young for evolutionists, who believed that life evolved in the ocean billions of years ago.
More recently, the geologist Dr Steve Austin and the physicist Dr Russell Humphreys analyzed figures from secular geoscience sources for the quantity of sodium ion (Na+) in the ocean, and its input and output rates.4 The slower the input and faster the output, the older the ocean could be.
2007-05-03 08:55:54 · answer #2 · answered by a Real Truthseeker 7 · 0⤊ 1⤋
As nature is concern, Almighty GOD has the power to create anything from nothing.
2007-05-04 02:18:36 · answer #3 · answered by alieu s 1 · 0⤊ 1⤋
because all marine life have to ejaculate somewhere ! there's no tissues out at sea !
2007-05-02 02:45:26 · answer #4 · answered by Red5 5 · 0⤊ 1⤋
Have a read of this:-
http://www.utdallas.edu/~pujana/oceans/why.html
.
2007-05-01 23:44:15 · answer #5 · answered by Leah 4 · 0⤊ 0⤋