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.
Natural gas also burns cleaner than fuel oil. Emissions produced by natural gas combustion are far less harmful than those produced by oil, coal and wood. No fuel tanks are required for delivery, reducing the risk of leaks polluting land and groundwater. Despite the safe properties of natural gas, like all combustion fuels or materials it is flammable and can produce carbon monoxide when trapped in a confined space and there is an inadequate supply of oxygen.