1 Forensic phonetics: the use of phonetics (the science of speech) for forensic (legal) purposes. 2  Speech recognition: the analysis and transcription of recorded speech by a computer system. 3  pronunciation: to learn actual pronunciation of words of various languages.
Mercury vapor is odorless, colorless and very toxic. Even though liquid mercury evaporates slowly, a significant amount of mercury vapor can build up indoors after mercury is spilled, and it can be dangerous to breathe these mercury vapors.
Mercury, a liquid metal, is used in artisanal and small-scale gold mining to extract gold from rock and sediment. Unfortunately, mercury is a toxic substance that wreaks havoc on minersâ health, not to mention the health of the planet.