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.
Marijuana is the name given to the dried buds and leaves of varieties of the Cannabis sativa plant, which can grow wild in warm and tropical climates throughout the world and be cultivated commercially. It goes by many names, including pot, grass, cannabis, weed, hemp, hash, marihuana, ganja, and dozens of others.hole or crude marijuana (including marijuana oil or hemp oil) is not approved by the US Food and Drug Administration (FDA) for any medical use. But the use of marijuana to treat some medical conditions is legal under state laws in many states.