toxina poisonous substance produced by living organisms or released by human activityEnvironmental toxins can accumulate in the food chain, posing risks to predators at the top.NoteEnvironmental toxins can accumulate in the food chain, posing risks to predators at the top.Elon.io is an online learning platformWe have an entire course teaching IELTS Vocabulary — Band 7+ grammar and vocabulary.Start learning IELTS Vocabulary — Band 7+ now