A.To study the problems of local industries.B.To find ways to treat human wastes.C.To investigate the annual catch of fish in the Biramichi River.D.To conduct a study on fishing in the Riramichi River.
A.To study the problems of local industries.
B.To find ways to treat human wastes.
C.To investigate the annual catch of fish in the Biramichi River.
D.To conduct a study on fishing in the Riramichi River.