Fields of Anthropology. There are now four major fields of anthropology: biological anthropology, cultural anthropology, linguistic anthropology, and archaeology. Each focuses on a different set of research interests and generally uses different research techniques.
SPC is one of the three categories of Statistical Quality Control (SQC). SQC is a statistical method of analyzing variations in the manufacturing process in order to make it better and more effective. Only a certain number of samples are needed to determine whether the products are acceptable.
THC is the short form of Tetrahydrocannabinol. It is a chemical found in Cannabis plant, which is also known as Marijuana. Usually, a THC test is a kind of detection test, where the donor has to give a sample of body fluid such as urine or blood or hair to the drug-testing center.