An intermediate in the combustion of carbon and hydrocarbons, carbon monoxide, is of special importance because it is a poisonous gas, but also economically useful for the production of syngas. Solid and heavy liquid fuels also undergo a great number of pyrolysis reactions that give more easily oxidized, gaseous fuels.
GM is short for General Motors. in text means Good Morning or means Good Move. Also means Genetically Modified.
In a regular expression \d means a digit, and a + means one or more. You want to 'match' one or more numbers in the text. The brackets mean to capture what is found into a number variable-e.g. $1. However, if your text said: And you wanted to know how many balloons you had, the above regular expression wouldn't work.ou want to 'match' one or more numbers in the text. The brackets mean to capture what is found into a number variable-e.g. $1. However, if your text said: And you wanted to know how many balloons you had, the above regular expression wouldn't work.