Three samples of water A,B and C have the D.O. values 1mg/l , 3mg/l , and 5 mg/l respectively . The more polluted sample of water is

Three samples of water A,B and C have the D.O. values 1mg/l , 3mg/l ,

1.	Three samples of water A,B and C have the D.O. values 1mg/l , 3mg/l , and 5 mg/l respectively . The more polluted sample of water is
Answer» A B C All are EQUAL ANSWER :A