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Water is regarded as a liquid which is colourless, odourless, tasteless. If this is the case, the color of water should be colourless as science explains. Why then is the ocean blue?

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While pure water is indeed colorless, the color of the ocean is influenced by various factors, and it appears blue primarily due to the absorption and scattering of sunlight. Here's a brief explanation:

Absorption of Light:

Water molecules absorb colors in the red part of the light spectrum more strongly than they absorb colors in the blue part. When sunlight enters the ocean, especially at shallow angles, the red, orange, and yellow wavelengths are absorbed more quickly than the blue wavelength. This selective absorption gives the water its blue color.

Scattering of Light:

The molecules and particles in the water scatter sunlight in all directions. Shorter wavelengths (blue and violet) are scattered more effectively than longer wavelengths (red and yellow). This scattering of sunlight is also a contributing factor to the blue appearance of the ocean.

Depth of the Ocean:

The color of the ocean can also vary with its depth. In shallow waters, the ocean may appear more greenish due to the presence of algae and other microscopic organisms. In deeper waters, where there's less influence from the seabed and more scattering of light, the blue color is more pronounced.

It's important to note that variations in water composition, suspended particles, and the angle of sunlight can also influence the perceived color of the ocean. While water is generally considered colorless, the complex interactions with light and the substances within the water can lead to the range of colors we observe in different natural bodies of water.
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Water itself is colorless and appears transparent because it absorbs very little light

in the visible part of the electromagnetic spectrum. However, the ocean appears blue

due to the selective absorption and  scattering of sunlight.

The blue color of the ocean is primarily a result of absorption and scattering of sunlight.

The water molecules in the ocean absorb colors in the red part of the light spectrum more 

strongly than the blue part, When the sunlight hits the ocean,some of the light is reflected

back directly but much of it penetrates the ocean surface and interacts with the water 

molecules that it encounters.

The red, orange, and yellow wavelengths of sunlight are absorbed so strongly in the ocean that they are either absorbed by water molecules or scattered  in all directions. The remaining

light that we perceive is composed of the shorter wavelength blues and greens. This is what 

gives the ocean its characteristic blue color.

The exact shade of blue can be influenced by various factors including the presence of algae,

particles,and dissolved organic matter in the water. In some cases, these factors can cause 

variations in the color of the ocean,making it appears more greenish or even brownish in 

certain conditions.
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Good one!

The ocean is blue because water absorbs the red part in the light spectrum.Like a filter, this leaves behind colors in the blue part of the light spectrum for us to see. The ocean may also take on green, red or other hues as light bounces off floating sediments and particles of the water.
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   Although pure water itself is transparent, the color of the ocean appears blue due to phenomenon known as selective absorption and scattering of light.

When sunlight passes through the Earth's atmosphere and reaches the surface of the ocean,it contains all the colors of the visible spectrum, including red, orange, yellow,green,blue,indigo and violet.


Water molecules have the ability to absorb colors at different wavelengths to varying degrees.In the case of water,longer wavelength colors such as red and orange are absorbed more strongly than shorter  wavelength colors like blue and green.


As a result,the blue and green wavelength of light are reflected and scattered by the water molecules in the ocean, making them dominant colors that our eyes,even though water itself is transparent.

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The blue color of the ocean is primarily due to the absorption and scattering of sunlight. Water absorbs colors in the red part of the light spectrum, and the blue light is scattered in all directions. This scattering is more effective for shorter wavelengths, which is why we perceive the ocean as blue. The purity and depth of the water, as well as the angle of the sun, can also influence the specific shade of blue.

Check the same water at sunset, its no longer blue. 

During sunset, the angle of the sun's rays passing through the Earth's atmosphere increases, causing more of the longer-wavelength colors (like reds and oranges) to be scattered and absorbed. As a result, the colors you may see on the water in the sea during sunset are often warm hues, such as red, orange, and pink. The specific colors can vary based on atmospheric conditions and the geographical location.
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Is water really transparent??The water is in fact not colorless. Even pure water is not colorless, but has a slight blue reflection to and it is best seen when looking through a long column of water. The blueness in water is caused by the scattering of light, which is responsible for the sky being blue. This is also the reason of blueness of ocean because it absorbs all other wavelengths of white light and scatters blue wavelength. 
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Because of the way sunlight is absorbed and scattered, the ocean appears blue. Blue light is scattered and colours in the red portion of the light spectrum are absorbed by water molecules 
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The ocean appears blue due to selective light absorption and scattering. Water absorbs longer-wavelength red light, while shorter-wavelength blue light is scattered and reflects back. This combination gives the ocean its characteristic blue color. The presence of particles, dissolved substances, and depth further influence the hue and intensity of the blue.
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Color is made by light or the absence thereof. Water seems to be translucent or laking in light or color. When water is seen in things like the ocean or a lake the water seems to appear to be blueish in color. This is because of the reflection of light off of other objects. So the blue we are seeing in the water is actually a reflection of the sky above it. It acts kind of like a mirror and the lights reflect causing the water to have a blueish tent to it.

Water can also appear in different colors. It can be black when the sky is dark and there is no light for it to reflect. It can also be either greenish or murky brown. When this occurs it is due to the sea life underneath the water. Or it can also be due to pollution that has been dropped into the water which is destroying its translucency and those allowing the water to appear as if it has color.
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The color of the ocean appears blue primarily due to the absorption and scattering of sunlight. Water absorbs colors in the red part of the light spectrum and reflects and scatters the blue part. This phenomenon is influenced by the water's molecules and particles, causing the ocean to generally appear blue to our eyes.
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While water itself is transparent, the ocean appears blue due to the absorption and scattering of sunlight. Water molecules absorb colors in the red part of the light spectrum, leaving blue predominant.
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