Post views 2,337 1. The PH value of fresh sewage is usually a. Equal 5 b. 5 to 7 c. More than 7 d. Less than 7 Answer More than 7 2. The rate of accumulation…
Post views 2,337 1. The PH value of fresh sewage is usually a. Equal 5 b. 5 to 7 c. More than 7 d. Less than 7 Answer More than 7 2. The rate of accumulation…