Benzene derivatives that include one or more hydroxyl groups attached to the ring structure.
D012722
Sewage
Refuse liquid or waste matter carried off by sewers.
Sludge,Sludge Flocs
D014586
USSR
A country located from the Baltic and Black seas to the Pacific Ocean and, for a time including 15 Soviet Socialist Republics. The capital was Moscow.
Soviet Union,Union of Soviet Socialist Republics
D014934
Wood
A product of hard secondary xylem composed of CELLULOSE, hemicellulose, and LIGNANS, that is under the bark of trees and shrubs. It is used in construction and as a source of CHARCOAL and many other products.