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HOW IS PEE YELLOW and why is it even yellow why cant it be purple or blue or green

User Indrek Ots
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Answer:

The reason on how pee is yellow is because it is primarily caused by the pigment urochrome

Step-by-step explanation:

User Alex Stewart
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pee is yellow because urine color generally ranges from a pale-yellow color to deep amber. This coloring is primarily caused by the pigment urochrome, also known as urobilin. Whether your urine is diluted by water or in a more concentrated form determines the appearance of the pigment.
User Mattias Wadman
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