Lake Ronkonkoma. 1  This centrally located Suffolk County hamlet is perfectly situated for easy commuting, with an LIRR station, the Long Island Expressway and the Long Island MacArthur Airport within its borders.
Petrified wood (from the Greek root petro meaning rock or stone; literally wood turned into stone) is the name given to a special type of fossilized remains of terrestrial vegetation. It is the result of a tree or tree-like plants having completely transitioned to stone by the process of permineralization.rtificial petrified wood has been produced in a Washington laboratory. In the process, small cubes of pine are soaked in an acid bath for two days, then in a silica solution for another two. The product is then cooked at 1400 Â°C in an argon atmosphere for two hours.
In the strictest scientific sense, petrochemicals are a set of very specific chemical compounds, which can be made from oil, natural gas, coal or other sources. The vast majority of petrochemicals, however, are derived from oil or natural gas. Oil and natural gas are used as feedstocks (i.e., the main raw material used in the manufacture of a product) to make approximately 99% of U.S. petrochemicals. The most basic petrochemicals are considered the building blocks for organic chemistry. The basic petrochemicals are: Ethylene.