Urea is a nitrogenous compound composed of carbon, nitrogen, oxygen, and hydrogen atoms. It is an organic compound that is widely used in fertilizers and animal feed. Urea is also a major component of urine, which is produced by the liver and excreted by the kidneys. Urea is a colorless, odorless solid that is highly soluble in water. It is an important source of nitrogen for plants and animals, and it can be used to produce a variety of other compounds.