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.
The five-number summary is a set of descriptive statistics that provide information about a dataset. It consists of the five most important sample percentiles: the sample minimum (smallest observation) the lower quartile or first quartile; the median (the middle value) the upper quartile or third quartile; the sample maximum (largest observation)