Propane Information. Propane is the most common liquefied petroleum gas (LP-Gas) and supplies about 4% of the U.S. total energy needs. It is a hydrocarbon composed of three parts carbon and eight parts hydrogen, or C3H8.Propane comes from two sources â when refining crude oil and when processing natural gas. Propane is a colorless, odorless gas. A commercial odorant is added in order to make propane detectable in the case of a leak.ropane Information. Propane is the most common liquefied petroleum gas (LP-Gas) and supplies about 4% of the U.S. total energy needs. It is a hydrocarbon composed of three parts carbon and eight parts hydrogen, or C3H8. Propane comes from two sources â when refining crude oil and when processing natural gas.
submissiveness - the trait of being willing to yield to the will of another person or a superior force etc. 1  obedience - the trait of being willing to obey. 2  obsequiousness, servility, subservience - abject or cringing submissiveness. 3  passiveness, passivity - submission to others or to outside influences.
An agonistic relationship in which one animal is dominant and the other is submissive is the simplest type of dominance hierarchy. In nature, most hierarchies involve more than two animals and are composed of paired dominant-subordinate relationships.