Learning Goal: I’m working on a environmental engineering question and need an e

Learning Goal: I’m working on a environmental engineering question and need an explanation and answer to help me learn.Hello,I have an assignment and it has been already corrected by the teacher but I got a low grade. the teacher is already have made some comments to the wrong answers which it can be helpful to solve them and get the full complete correct answer. I have attached the assignment, book, and the corrected assignment with comments. Moreover, the book: chapter 13,15, and 16.
Requirements: I need a complete answers.   |   .doc file