The odor of farts comes from small amounts of hydrogen sulfide gas and mercaptans in the mixture. These compounds contain sulfur. Nitrogen-rich compounds such as skatole and indole also add to the stench of farts. The more sulfur-rich your diet, the more sulfides and mercaptans will be produced by the bacteria in your guts, and the more your farts will stink. Foods such as cauliflower, eggs and meat are notorious for producing smelly farts, whereas beans produce large amounts of not particularly stinky farts.
2006-06-07 19:47:48
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answer #1
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answered by Eric 2
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The average human releases 0.5 to 1.5 litres (1 to 3 U.S. pints) of flatus a day by flatulating 12 to 25 times. The primary constituents of flatulence are the non-odorous gases nitrogen (ingested), carbon dioxide (produced by aerobic microbes or ingested), and hydrogen (produced by some microbes and consumed by others), as well as lesser amounts of oxygen (ingested) and methane (produced by anaerobic microbes). Odors result from trace amounts of other components.
2006-06-08 03:01:57
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answer #2
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answered by Anonymous
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"Disgust is thought to have its origins in (and in some cases to be identical to) instinctive reactions that evolved as part of natural selection for behavior which tended to prevent food poisoning, or exposure to danger or infection."
Flatus (farts) smell like feces. If feces would not smell this bad to us, then we wouldn't avoid touching them, maybe even eating them. Lots of diseases may be transferred this way.
2006-06-08 08:24:29
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answer #3
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answered by ringm 3
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they smell bad to only other people in the room, because of a peculiar reaction of hydrogen sulphide and nasal hair chemicals
2006-06-08 02:51:06
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answer #4
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answered by beautu 2
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To make sure we have a natural defence system to keep people at a distance when we don't want them near us. Sort of like cacti and their prickles
2006-06-08 02:48:20
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answer #5
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answered by sharkgirl 7
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They only smell bad when other people do them.
2006-06-08 02:58:24
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answer #6
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answered by Anonymous
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Methane gas from bacteria.
2006-06-08 02:47:46
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answer #7
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answered by ? 6
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cos u dont go to the toilet every morning
2006-06-08 02:54:41
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answer #8
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answered by Concoction 2
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