why is the water green?
91470
seaweed is green. seaweed is in the sea. It makes the sea look green.
56340
1) because clorphyll asorbes thoes wavelegenths best.\n\n2) because clorphyll reflects green wavelegenths.\n\n3) don't know
231979
Green cloudy water isn't necessarily a sign of algae. It takes three components to make clear blue water. If any one of these components if "off" the result is the same-- green cloudy water.\n1) Check and adjust pool chemistry- a pool store will show you how to do this. MEASURE the pool first. They (and you) MUST know the volume of water to be treated.\n2) Circulate, circulate, circulate. Run the pump 24 hours a day while trying to clear the pool.\n3) Check the filter to make sure it is in good order. Sand filters will sometimes allow tiny particles to pass through, reflecting back a green wavelength. If this is the case, change the sand and add a flocculant or clarifier. These chemicals work by sticking small particles together, making them large enough to filter out. OR by making them sink to the floor where they can be vacuumed to waste. Use clarifiers/flocculants per directions on the containers. Your pool store can help.
416503
Assuming you're not near a pollution source or river mouth, the brown color simply comes from stirred-up sand and algae in the surf zone.  If you go just a few miles out, the water becomes as blue as the Caribbean.
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!
710247
The chloroplast cells absorb all other colors besides green. So green is reflected...
994169
Is water wet? Is the sky blue?\n\nYEP!
367774
Water is denser than air (or sunlight).
384249
Green, or so it would appear.
24151
Everyone else is wrong. This has nothing to do with water. The sky is blue because as the light waves pass trhough the air they collide with molecules, effectively scattering the blue wavelenghts of light. This is demonstated by the fact that the sky at lower angles appears more blue, because there is more air that the light must travel through.
235675
Water gets split and donates electrons to the chlorophyll.
1141767
The greener, the swimmier.
699185
Green with a jungle theme border.
166918
the grass is green because of the chloroplasts, which contain chlorophyll, which is essential for photosynthesis (the process by which plants convert sunlight into energy). the sky is blue because of the water droplets in the air reflecting the oceans. all the colors are the way they are because we see them that way and we decided to name them.
26465
Sunlight is made up of all the colors of the rainbow: red, orange, yellow, green, blue, and violet. Some of the sunlight is reflected off the surface of the water, reflecting the color of the sky. Some of the sunlight penetrates the water and is scattered by ripples and particles in the water (this tinges the appearance of the ocean with the color of the particles). In deep water, much of the sunlight is scattered by the oxygen in the water, and this scatters more of the blue light.
318117
For the same reason the sky looks blue. If the air were perfectly transparent and without dust or water vapor etc, you would see the distant greeny hill look green(y).\n\nBut due to the presence of microscopic dust in the air, the distant objects take on a very slightly bluish hue.
35915
Because they have chlorophyll, a green substance they use for absorbing sunlight