Some people say it's 2,3,7,8-tetrachlorodibenzo-p-dioxin(TCDD)
See http://en.wikipedia.org/wiki/Polychlorinated_dibenzodioxins to learn more.
NH4 is most toxic, in fact in mammals it is always transported in the form of glutamate, because it is so toxic. So if this is in reference to humans, that is the most likely answer. NH3 on the other hand is non toxic unless present in high concentrations for whatever reason (such as problems with excretion when it is converted to Urea
Ammonia is toxic to cells at high levels as it disrupts cellular processes and can lead to cell damage or death. However, there are other molecules that can be more toxic to cells depending on the concentration and exposure duration.
Yes, coal can be toxic when burned or exposed to the environment, as it releases harmful pollutants such as sulfur dioxide, nitrogen oxides, and mercury. Additionally, coal mining and transportation can have negative environmental and health impacts due to the release of toxic chemicals and particulate matter.
Toxic is an adjective.
That's totally wrong, the most toxic substance known to man is Botulin toxin, from the bacteria Clostridium botulinum. Botulin is approx 1000 times more toxic than TCDD, and TCDD is also less toxic than polonium 210. No man made substance has come close to beating the toxicity of a certain bacteria Botulin is commonly known under the trade name of "botox" so when you're having that injected into your face remember this
no it is not toxic but it is not the smartest thing in the world to do you will get sick for a few days but then you will feel better and go why did i eat the top of the crayola marker
there is no such thing
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Vitamin A & Vitamin D are most toxic, and also vitamin E is very toxic.
the thing sitting behind you!
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Life is the most precious thing in the world. Without it nothing would be possible.