Mescalero-Chiricahua Apache is a family of languages that is spoken in Oklahoma and New Mexico. The Oklahoma language is in dire need of assistance; while most Indigenous languages in North America are in danger of extinction, this one has as few as three native speakers remaining.
Basic problems with corrosive chemicals... Corrosive: A chemical, (solid, liquid or gas), that can cause destructive damage to body tissues at the site of contact. It can cause severe burns to the skin and can eat through clothing, metal and other materials.
A sulphur-based odourant is normally added to CNG to facilitate leak detection. Natural gas is lighter than air and thus will normally dissipate in the case of a leak, giving it a significant safety advantage over gasoline or LPG. Liquefied Natural Gas or LNG is natural gas stored as a super-cooled (cryogenic) liquid. The temperature required to condense natural gas depends on its precise composition, but it is typically between -120 and -170Â°C (-184 and â274Â°F). The advantage of LNG is that it offers an energy density comparable to petrol and diesel fuels, extending range and reducing refuelling frequency.