The diagram below show the process of collecting rain water for use as drinkingwater in an Australian town.
Summarise the information by selecting and reporting the main features,and makecomparisons where relevant.
The flow chart illustrates the procedures for collecting and handling rainwater,which are mainly to generate drinking water for the public in an Australian town.
As can be seen from the diagram,the shape of the roof guarantees the rainwater can drip from the eaves until reaching the drain system.In the following stage,the rainwater flows through sewage lines beneath and is subsequently delivered to the filter,where impurities can be removed.After preliminary treatment,the rainwater is conveyed through pipelines and then stored in the container.The next step is employing chemicals to dispose of the delivered rainwater in the process of water treatment.In the final procedure,it is the converted drinking water that runs into pipelines and therefore caters for daily household demand.
Overall,processing rainwater is rather simple through steps mentioned above,which relies on several treatments to transform the collected rainwater into drinking water.
The chart below shows proportions of males and females getting top grades in the S school,compared with the national average.
The bars are the illustrations of the performance of male and female students in obtaining top grades in S School,and the performance is compared with the national average.
In this school,Science,language subjects and Humanity are three areas where there are marked differences between males and females,and the difference is most distinct in language subjects,where 50 percent of females attain top grades,and the percentage is more than three times of that of males.Nationwide,there is a different pattern.The only realm where the disparity is considerable is Humanity,as females outperform males by a huge margin of 25 percent.
The school,its male students,to be exact,performs better than the national average in Math(30 percent to 18 percent nationwide)and less good than national average in language subjects(15 percent to 30 percent) and these are the obvious differences.As for females,Science is where the gap is largest.As 30 percent of females achieve top grades on the national scale and only 16 percent of the school’s female students achieve the same level,School falls behind.
Overall,in terms of both scale and gender,the variation is significant in some subjects and moderate in others.