EFFECT OF NITROGEN COMPONENTS ON GROWTH AND PIGMENT FORMATION OF MICROALGAE CHLORELLA VULGARIS 4 AND SCENEDESMUS QUADRICAUDA 32 Journal title: International scientific journal Science and Innovation Authors: Kayumova Iroda Komolovna, Kadirova Gulchekhra Khakimovna, Shonakhunov Tulkin Erkinovich Subject(s): Archaeology, Arts and Literature, Biological Sciences, Chemistry, Computer and Information Science, Economics, Education, Humanities, Law, Linguistics, Mathematics, Medicine, Philosophy, Physics, Psychology, Social Sciences, Architecture, Agricultural Science