the graph shows data about the annual earnnings of 3 bakeries in calgary in 2000-2010

The diagram outlines the manufacturing procedure of

bricks

.

This

process consists of 7 steps; which

starts

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start

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with the removal of

clay

from the ground with a shovel and

ends

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end

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to where the

bricks

eventually get delivered by truck. The initial step to manufacturing

bricks

begins with the mining of

clay

from the

earths

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earth's

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continental crust.

Thereafter

, the

clay

is presented on a steel grid that sifts the

clay

onto a roller.

Following

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Following this

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, the first brick is created by adding sand and water to the

sift

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sifted

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clay

. The mixture is

then

pressed into a mould or processed with a wire cutter respectively. Continuously, the

bricks

are packed in an enormous drying oven for 24 to 48 hours. It is

then

dried at moderate temperatures between 200 and 980 degrees Celsius. The temperatures are

then

escalated to between 870 and 1300 degrees Celsius

,

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before it is cooled down for 48 to 72 hours. The penultimate process requires

for

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apply

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the

bricks

to be sorted and packed before it is transported by truck for delivery.