Social sciences (3) Ciencias sociales (3) Bioremediation (2) Research (2) Petroleum (2) Nitrogen (2) Biorremediación (2) Estudio (2) Nitrógeno (2) Investigación (2) Petróleo (2) Microalgae (1) Environmental sciences (1) Multimedia systems (1) Labor (1) Water (1) Variations (1) Trials (1) Translating and interpreting (1) Terms and phrases (1) Technology (1) Soils (1) Sociology (1) Science (1) Salts (1) Salinity (1) Population (1) Pollution (1) Phytoplankton (1) Phosphorus (1)