The diagram illustrates and provides key information about the steps involved in biofuel production and explains how ethanol is made. The data is expressed as a diagram showing the steps from energy consumption to final
The pie chart illustrates four transportation means and the proportion of using them in Edmonton. In addition, the table shows the main reasons of using car in city.
The bar chart depicts the number of students enrolled in some schools from 2001 to 2007. Overall, Royal Latin, Didcot Secondary, and Seven Oaks showed fluctuating a trend, despite this Oaks Secondary presented the highes
The diagram illustrates the construction and working process of a simple water filtration system used to convert impure water into clean drinking water.