Because, of the chemicals in different types of food. This also lets I think spinach... smell strange.
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Urine can appear darker when you are dehydrated, as the body retains more water. On the other hand, light-colored urine can indicate that you are well-hydrated. Other factors that can affect urine color include diet (foods like beets or certain medications can change color), health conditions, or how concentrated the urine is.
Neon is lighter than hemoglobin 50 times.
Hydrogen sometimes accepts an electron and forms a negative ion, while other times it donates an electron and forms a positive ion.
The mass of an electron is approximately 1⁄1836 of a proton. Thus as hydrogen is made of one proton and one electron, hydrogen is 1837 times heavier than an electron.
A hydrogen atom is about 1836 times lighter than a single hemoglobin molecule. This is because the atomic mass of a hydrogen atom is approximately 1 atomic mass unit (amu), while the molecular mass of a hemoglobin molecule is roughly 1836 amu.
Nitrogen is lighter than oxygen. Nitrogen gas (N2) has a molar mass of 28.02 g/mol, while oxygen gas (O2) has a molar mass of 32.00 g/mol. Since nitrogen is lighter, it makes up a larger portion of the atmosphere.