Low-priced stock that sells at less than $1.00 per share. Often highly-speculative and volatile, such as start-up mining companies. While, in general, penny stock are considered high-risk securities, some penny stock mature into less-speculative investments. All penny stock are traded over-the-counter.
In its natural form, cork is also a very good fire retardant, although cork dust is actually extremely flammable (because here the cell structure has been broken down). Impermeable: Cork has a magic chemical in its cell membrane that makes it completely impermeable to liquids and gases.
Rating Newest Oldest. Best Answer: No it is definitely not flammable. However it will relight a glowing wooden splint (as in the test for oxygen) because the heat of the glowing splint decomposes the N2O into nitrogen an oxygen and the oxygen relights the splint.ating Newest Oldest. Best Answer: No it is definitely not flammable. However it will relight a glowing wooden splint (as in the test for oxygen) because the heat of the glowing splint decomposes the N2O into nitrogen an oxygen and the oxygen relights the splint.