When an animal dies or creates waste nitrogen is changed into ammonia by the?

When an animal dies or produces waste, nitrogen is converted into ammonia by the process of decomposition, primarily facilitated by bacteria and other microorganisms in the environment. These decomposers break down organic matter, releasing ammonia as a byproduct of nitrogen metabolism. This ammonia can then be further transformed through processes like nitrification, where other bacteria convert it into nitrites and nitrates, which are usable forms of nitrogen for plants.