why the sea color is appears as in blue color?
819026
Because of the sea salt.
492159
It is 'Deep Blue Sea.'
643771
The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air. \n\nHowever, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue.
804432
The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air. \n\nHowever, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. \nOn Earth, the sun appears yellow. If you were out in space, or on the moon, the sun would look white. In space, there is no atmosphere to scatter the sun's light. On Earth, some of the shorter wavelength light (the blues and violets) are removed from the direct rays of the sun by scattering. The remaining colors together appear yellow. \n\nAs the sun begins to set, the light must travel farther through the atmosphere before it gets to you. More of the light is reflected and scattered. As less reaches you directly, the sun appears less bright. The color of the sun itself appears to change, first to orange and then to red. This is because even more of the short wavelength blues and greens are now scattered. Only the longer wavelengths are left in the direct beam that reaches your eyes.
267281
Well.........\n\nThe blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air. \n\nHowever, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue.
680108
There are two reasons. Both are caused by a property of light -- it is made up of different wavelengths.\n\n(1) When light passes through our atmosphere, it diffracts & blue wavelength gets scattered towards earth. This is why the sky is blue. When viewed from the beach, the sea is also blue because it reflects the sky, of course.\n\n(2) Another reason is not by diffraction, rather, light under the sea is blue because water absorbs longer wavelength of light through distances over about 20 metres.
66169
The sun's rays hit the Earth's atmosphere, where the light is scattered by nitrogen and oxygen molecules in the air. The blue wavelength of this light is affected more than the red and green wavelengths, causing the surrounding air to appear blue. At sunset, the sun's light passes farther through the atmosphere, deflecting and decreasing the blue in the air. Scattering by dust particles and pollution in the air causes the sunset to appear red.
646815
it's not actually, if you look at the ocean, from the top it is blue becaues it is reflecting the light from the sky.   if you are underwater, it looks blue because the blue light is dispersed the least, meaning that the blue light penetrates farther into the water than the other colors of light.
112651
The point you are talking about is Cape Agulhas.  I have been there and you can see different colors in the water where the oceans meet.  You do not see a perfect horizontal line dividing the oceans, but you do see bands and pockets of color as opposed to the smooth diffusion you might expect.\n\nThe different colors come from different kinds of plankton living in the water.  While it's true that pure water gets its color from refracting light, the ocean is not at all pure.  Plankton living in the water has a major effect on the color of the ocean. The Indian and Atlantic Oceans have different temperatures and different concentrations of salt, so different kinds of plankton live in them. Different kinds of plankton reflect different colors, so when you look at the ocean from the shore you see different colors in the water.\n\nThe bands and pockets of color appear because the oceans don't mix evenly.  The uneven mixture is caused by a current called the Agulhas Retroflection.
539871
in the summer the sky is blue because the atmosphere dullens the color of outer space but in the winter the sky is the color it is because of the water particles that are in the sky
1047968
Tropical seas are usually a lighter blue colour because they are clearer than water at higher latitudes.\n\nWanna know why?\n\nIt’s because dead animals and plants sink in water. That might seem obvious, but it means that any nutrients in sea water are rapidly used up by animals and plants and when those organisms die they sink to the bottom taking the nutrients with them. The only way those lost nutrients can be replaced is if water form the ocean bottom, where all those dead organisms go, can be moved to the surface again.\n\nThat cycling can’t happen in tropical regions because the surface water is warm and warm water floats on the cold water of the ocean bottom. As a result tropical waters very rapidly become nutrient deficient.\n\nBecause they are nutrient deficient very little actually lives in tropical waters. Very few algae, very little plankton and so forth. And because nothing much lives in tropical waters they remain clear. That means that light can get go waayyy down into the depths, and as light passes through the water the blue wavelengths get scattered. That produces a vivid turquoise blue ocean.\n\nIn contrast cold waters are dirty and full of life due to the upwelling of water from the ocean bottom. All that dirt and all the life it supports absorbs sunlight very fast. Light will only penetrate a few metres in cold waters. With very little penetration the light also doesn’t have much chance to scatter. That produces an ocean that is very dark coloured, and where the blue wavelengths are muted by the reds and greens to produce a muddy blue-gray.\n\nSo what it all comes down to is that tropical waters are clear, and they are clear because they are sterile and nutrient deficient. Coral reefs thrive in tropical waters precisely because they are clear and sterile and that allows enough sunlight for the photosynthetic symbiotic algae that live in the coral and that provide most of their food.
1150937
The ocean appear blue because of its depth ... once visible light hits the ocean and penetrates the surface, all colors of the spectrum are absorbed and blue light waves are reflected back ... hence, blue.\n\nWater, in glass, is not reflective or deep enough to reflect any colors. This is why if you took some blue sea water and placed it in a glass, it would look clear ... murky, but clear.
1021216
due the packages of gases present in the atmosphere int he sky the  sun rays scatter and passes thru the gas molecules and by passing thru them the largest occupied gases molecules dispersive  frame would result in blue colour.
1064938
I see it blue..isn't it??
1089433
The ocean reflects the sky! The sky is blue because of the way light passes, and the ocean or any water mass outdoor reflects this light.
7107
Well mostly the difference in colour of the oceans is due to the muddy and unclear waters. no waters have colour. But it is just the colour of reflection. Please see the site i am listing below. It is a q & a type forum only!!\n\n\nYou may get your answer here too!!\n\nWe see the water  great masses, seas, lakes, rivers, with colors: blue,  green, gray, \nsometimes brownish. But if one picks up a pot of that water the aspect is not colored.  \nSo the color is an optical phenomenon that is observed only when a large volume of water \nis considered and it depends on several things:\n-The water reflects the sky, so its color depends upon the sky colour at that time, and if \nit has white or grayish clouds.\n-At other hand  the water colour depends also from the material that is found  mostly into \nthe sea  water.\nThere are life there…animal and vegetal, a lot,included the  phytoplankton, microscopic \nplants that either float or are suspended there.  And of course there are  dissolved and \nsuspended also inorganic and organic matter coming from the sea floor and from rocks.   \nColor is the result of  optical interactions from the incident  solar light and the \nbillions of microscopic particles present.\nWhen the light of the sun reaches the sea surface different phenomena happen, part is \nreflected, part is absorbed and some is scattered. These phenomena happens with the water \nitself, the dissolved organic and inorganic matter and the suspended particles.\nThe colour of sea water depends upon  the distribution of these facts. It is blue for clear \nocean water and shifts to darker for less transparent or more turbid waters, and depends \nalso from the depth and transparency of the considered layer of water. And that colour can \nbe seen from space! That is why our planet Earth is called the "blue planet". Isn´t that \nwonderful?\nAnd thanks for asking NEWTON!
966396
AHHHH !!!!A question other than why is the sky blue.  The color of the sky is colorless, clear.  Look at the shots of earth from space (on the night side) you can see earth perfectly, no color enhancement.  Look up at the stars on a clear night, you can see them without any bluish color.\n\nThe sky is only various colors when the sun is shining thru it.