Explanation:Fertilizers:Fertilizers are chemical compounds that are used to maintain a good harvest and improve soil fertility.It is used excessively in agricultural processes.Fertilizers increase crop productivity.Example:- granular triple superphosphate, urea, potassium chloride, anhydrous ammonia.Urea:Urea has a molecular weight of 60.06 g.Urea is rich in nitrogen content. It has approximately 46.6% nitrogen in it.Urea is soluble in water.Urea is the only fertilizer which has the highest nitrogen content.Urea is a non-protein nitrogen compound that is mainly made up of nitrogen.Urea is commercially prepared on large scale by the reaction of liquid ammonia and liquified carbon dioxide.