Sorry we do not know what you mean by "firm odor" so we can not answer your question.
magic gives them their odour !
it is a chemical component which gives bad odor
The olfactory bulb can detect the smell of odor particles.
Sulfur is an element that gives off a strong odor, often described as resembling rotten eggs.
Sinigrin is a naturally occurring glucosinolate compound found in mustard seeds and certain other cruciferous plants. It plays an important role in the characteristic pungency of mustard. To understand it better, we need to look at what happens when mustard seeds are crushed. Mustard seeds contain sinigrin as well as an enzyme called myrosinase. When the seeds are crushed and suitable moisture is present, myrosinase acts on sinigrin and converts it into several products, including allyl isothiocyanate (AITC). Allyl isothiocyanate is responsible for much of the sharp, pungent smell and characteristic hot sensation associated with mustard. This is why the pungency of mustard oil can be influenced by factors such as seed composition, moisture conditions and processing methods. At Pure Tatva, we pay particular attention to moisture control and the extraction process. We use a controlled hydraulic pressing method without adding water during extraction. Our Virgin Juicy Mustard Oil is developed to have a mild, non-pungent aroma and a fruity fragrance. One important distinction is that sinigrin itself is not the pungent-smelling compound; allyl isothiocyanate, formed through its enzymatic breakdown, is responsible for the characteristic pungency. About the author: I am Ravi Pratap Rana, Founder of Pure Tatva, with 19 years of experience in the Pharmaceutical Industry, including production, formulation development and operational excellence. Contact: +91 9915678739
Esters give many flowers their pleasant odor.
you do know a skunk is an animal not a spliff...... The plant gives off a bad odor because it attracts pollinators and keeps animals from eating the plant. The odor is not harmful to touch or stench. It's odor lets out when the leaf is broken or opened.
Smell
It gives your urine a really nasty odor.
The nasal canal is made up of olfactory cells that allow you to detect odors.
Ammonia is the gas that gives smelling salts and household cleaners their characteristic odor. It has a strong, pungent smell that is easily recognizable.
Plants don't make noise. The only odor that a plant would produce if it's some sort of forb or orchid that emits a foul smell when it flowers. This sort of plant is only found in the rainforest. No other plant, like those grown in North America, have such a smell.