The pie chart below shows the sources of electricity generation in one country in 2020, and the bar chart shows the average cost of each source. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram illustrates the sequence of stages involved in manufacturing bricks for the construction industry.

Overall

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, it is clear from the process that there are seven distinct steps, beginning with the extraction of raw clay and ending with the finished product being delivered to customers. The procedure is largely mechanical,

although

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it

also

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relies on drying and heating at carefully controlled temperatures.

At the first stage

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, clay is dug from the ground by a digger and

then

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placed onto a metal grid, where it is broken into finer particles. Sand and water are

subsequently

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added to

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material, so the mixture becomes soft enough to be shaped either in a mould or by being cut with a wire. Because the resulting blocks still contain a great deal of moisture, they are left in a drying oven for between one and two days before anything else can be done. Once

this

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initial stage is complete, the blocks are transferred to a kiln, where they are fired at a moderate heat of 200 to 980 degrees Celsius and afterwards at a far higher temperature of 870 to 1300.

Following

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this

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, they are moved into a cooling chamber for two or three days, which allows them to harden fully.

Finally

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, the finished products are packaged and loaded onto lorries,

whereas

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any that have cracked during firing are discarded. If every step is followed correctly, the entire cycle takes roughly a week.