The sea is part of our Earth, where 3/4 of the Earth is the ocean that 
stretches. Marine life is also a place for creatures such as fish, and 
other marine biota.       
 
         The sea formed about 4.4 billion years ago.
Where originally are very acid with water that boils ( with temperatures
 of roughly 100c ) due to the heat of the earth at the time.
Acid sea water happen because it was earth atmosphere infested by carbon
 dioxide.
The acidity of this is what causes the high weathering happened that 
mengahsilkan garam-garaman that causes of sea water into salted like 
now.
         Water vapor in the atmosphere condensed and is making the rain started. 
Rain is filling the basin-basin on Earth until it is making the oceans 
that is why on Earth started there. Gradually, the amount of carbon 
dioxide in the atmosphere began to dwindle due to dissolved in sea water
 and react with carbonate ions form calcium carbonate. As a result, the 
sky starts to become so bright sunlight can illuminate and re-entered 
Earth's evaporation process thereby resulting in a case the volume of 
sea water on Earth has experienced a reduction in and parts of the Earth
 that was initially inundated began to dry. Weathering processes help 
continuing rains that occurred and carried away into the sea, causing 
the salty sea water.
        On the 3.8 billion years ago, the planet Earth began to look blue 
because the sea was formed. The Earth's temperature is getting colder 
because of the water in the sea absorbs heat plays a role in energy. 
That's the history of the formation of the sea so we must take care of 
its natural sea so that our grandchildren can recognize in sea life.