Urea is a raw material used in the manufacture of many important chemicals, such as: 1  Various plastics, especially the Urea-formaldehyde resins. 2  Various adhesives, such as Urea-formaldehyde or the urea-melamine-formaldehyde used in marine plywood. 3  Potassium cyanate, another industrial feedstock. 4  Urea nitrate, an explosive.
There are many types or strains of marijuana, however they basically fit into two categories; Indica and Sativa.Breeders will often cross strains to change the growing or properties of the original. As a rule of thumb, generally Indicas tend to be shorter, stockier plants with smaller, denser and smellier buds.here are many types or strains of marijuana, however they basically fit into two categories; Indica and Sativa.
Bad Reactions: Commercial Types of Weed. There are all kinds of ways that marijuana can be grown, using a variety of strains that are available to those who cultivate them. These are some of the most popular kinds of marijuana found among regular buyers and users.ad Reactions: Commercial Types of Weed. There are all kinds of ways that marijuana can be grown, using a variety of strains that are available to those who cultivate them. These are some of the most popular kinds of marijuana found among regular buyers and users.