Band 4+: Task 1: The diagram below shows how a simple water filter is constructed and how it functions to produce clean drinking water. Summarize the information by selecting and reporting the main features, and make comparison where relevant.

The diagram outlines the strucrute of a basic water filtration deice and illustrates process by which it produces clean,drinkible water.

Overall,the structure has several stages,begins with area for sand and culminating with gravel cleaning tools.

To begin with,the structure has 3 main steps,cleaning with a sand,charcoal ang gravel.Firstly,impure water gets into the vessel in the top of simple construction.Next,when the impure water is gone deeper into the filter,it is cleaned by sand roof.Before being go to next step of filtration,the water is cleaned maximum.Second stage,it is a cleaning with charcoal,which is in the middle of construction.

Furthermore,after the second step with charcoal here is a level with gravel in the last stage.Following this,in the bottom of simple filter.Then the impure water that has already cleaned by 3 steps of filtration,goes to the drinking water storage bank.The linking tool between the simple water filter and drinking stotage bank is a hose.