Industries produce waste that can affect the: 1  pH of water (whether it is acid, neutral or alkaline); 2  colour of water; 3  amount of nutrients (increase in nutrients can cause eutrophication);
Generally, the purpose of a review is to analyze critically a segment of a published body of knowledge through summary, classification, and comparison of prior research studies, reviews of literature, and theoretical articles.
Like a concise briefing on a topic, a summary is an informative abstract with a less limiting word count. So to jump-start writing a summary, you can once again apply the 5-Question Method. As you may recall, you answer the five questions at a high level; then remove the questions.