Carbon–hydrogen bond C−H bond is generally regarded as being non-polar. In structural formulas of molecules, the hydrogen atoms are often omitted. Compound classes consisting solely of C–H bonds and C–C bonds are alkanes, alkenes, alkynes, and aromatic hydrocarbons. Collectively they are known as hydrocarbons. In October 2016, astronomers reported that the very basic chemical ingredients of life—the carbon-hydrogen molecule (CH, or methylidyne radical), the carbon-hydrogen positive ion (CH+) and the carbon ion (C+)—are the result, in large part, of ultraviolet light from stars, rather than in other ways, such as the result of turbulent events related to supernovae and young stars, as
Uma (given name) rice fields. Uma in Japanese means horse. Uma in Swahili means bite. Uma (given name) Uma is a given name in various cultures. In India, it is the name of the Hindu goddess, who is more commonly known as Parvati. In Sanskrit the word "" can further mean "tranquillity", "splendour", "fame" and "night". In Hebrew and Aramaic its meaning is "nation". It is also used by the Tiv people of Cameroon and Nigeria where the meaning in the Tiv language is "life". The name Uma is also popular in the Otukpo subgroup of the Idoma people of Nigeria and the