LING POLECA: KURS ANGIELSKIEGO ONLINE W ETUTOR
Wielki słownik angielsko-polski red. nacz D. Jemielniak, M. Miłkowski

(Noun) nauka o ochronie środowiska;

Wordnet angielsko-polski

(the branch of biology concerned with the relations between organisms and their environment)
ekologia
synonim: ecology
synonim: bionomics