The diagram below show the stages in the recycling of aluminium drinks cans.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Model Answer
The flowchart illustrates how discarded drinks cans are recycled. Overall, this cyclical process is composed of about eight distinct stages, which can be grouped further into three main steps: collection, manufacturing and consumption.
At the first phase in the process, wasted cans discarded into a recycling bin are taken out and sorted according to the material they are made of, which is either aluminum or steel. The sorted cans are then placed into separate boxes and are transported via trucks to a recycling factory for further processing.
In the factory, the initial stage involves compressing the delivered cans into blocks. These blocks, in the following step, are melted down to form aluminum ingots. Next, using these ingots, aluminum rolls are made, which serve as a raw material for new cans of standard sizes.
Ultimately, the newly recycled cans can be filled with drinks of various types, before being taken to stock coin-operated vending machines. Once consumers purchase drinks from these machines, empty the cans and throw them away, the cycle continues.
20 min.
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