The graph below shows female unemployment rates in each country of the United Kingdom in 2013 and 2014.

The diagram illustrates the series of stages by which

bricks

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are produced for the building industry.

Bricks

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are manufactured step by step through approximately eight stages. The first stage involves bringing the mined clay to a metal grid, where it is crushed. The final steps are simpler than the earlier ones — they involve packing the

bricks

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and delivering them. At

first,

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a digger extracts the clay and carries it to a metal grid, where it is broken down by a roller. After that, it is combined with sand and water.

Subsequently

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, the mixture is given shape by one of two methods: using a mould or a wire cutter.

Then

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, the

bricks

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are transferred to a drying oven for about 24–48 hours to remove excess moisture.

Next,

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the dried

bricks

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are fired in a kiln. The process begins with moderate temperatures (around 200

°C

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to 900

°C

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) and is followed by exposure to higher temperatures (from 870

°C

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up to 1300

°C

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).

After

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this

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, the

bricks

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are cooled in a chamber for 48–72 hours, allowing them to harden completely. The final two steps are easier than the previous ones. They involve packing the

bricks

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and storing them.

Finally

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, the

bricks

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are delivered to construction sites, ready to be used in various building projects.