Fossil fuels are essential for producing electricity, powering industry and fuelling transportation. However, one day we will reach a point when all the world’s fossil fuels have been depleted. How can we conserve this resources? What are some alternatives to fossil fuels?

The diagram illustrates the process of

factory

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-made

fish

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pie and the various steps in its production. Overall, the process consists of three main stages, beginning with the delivery of the raw ingredients

such

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as potatoes and salmon end ending with the storing of frozen

fish

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pies.

First

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of all, the potatoes are delivered to the

factory

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via a delivery truck. After that, they are automatically cleaned, peeled and sliced, before being boiled.

Subsequently

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boiled potatoes are left to chill and

then

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they are stored. In the

next

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stage, fresh salmon is being delivered to the

factory

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, where it follows several steps before being used in the

fish

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pie.

Firstly

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, lemon juice and salt are added and

then

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the salmon goes into a steam oven within 12 hours or less from its delivery. Following

this

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,

factory

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workers manually remove

skins

Suggestion

skin

and bones, after which they visually inspect the

fish

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.

Next

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, prepared peas, sauce and the boiled potatoes that were previously stored, are added to the final composition.

Finally

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, the final products are wrapped by the

factory

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workers and placed into a freezer. Following

this

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, the frozen

fish

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pies are dispatched to the store.