??? ?? ????????? ?? ???????? ??? ?????????? ?????????, ???? ????? ?? ?????? ?????? ??? ??????? ???????? ??? ?????, ???? ?? ??????? ??? ??????!•??????? ??????? ?????? ??? ?? ????? ??? ???????? ??? ??? ??????????? ?? ?? ????????? ????? ???? ?? ??? ????? ??? ?????? ??? ??????? .Ammonia is also renewed By natural means as Element of the nitrogen cy