The process that will be most responsible for replacing lost nitrogen in an ecosystem would be : Fixation In fixation, the ecosystem biosynthesize various substance from plants, animal, etc and forming a new nitrogen
Nitrogen fixation is a method by which nitrogen in the Earth's atmosphere is converted into ammonia or other molecules prepared to living organisms. Nitrogen fixation is carried by a diversity of bacteria, both as free-living organisms and in symbiotic association with plants. Because it is the primary source of the nitrogen in the soil, nitrogen that plants need to grow, nitrogen fixation is one of the most critical biochemical processes on Earth
