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.
The strain âThai Stick,â grown by the hill tribes in northeast Thailand, was some of the highest quality marijuana found in the â70s. The hill tribes of Thailand generally used silk line to hold âThai budsâ together around either bamboo sticks or hemp stalks.