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

-made

fish

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

as potatoes and salmon end ending with the storing of frozen

fish

pies.

First

of all, the potatoes are delivered to the

factory

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

Subsequently

boiled potatoes are left to chill and

then

they are stored. In the

next

stage, fresh salmon is being delivered to the

factory

, where it follows several steps before being used in the

fish

pie.

Firstly

, lemon juice and salt are added and

then

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

this

,

factory

workers manually remove

skins

Suggestion

skin

and bones, after which they visually inspect the

fish

.

Next

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

Finally

, the final products are wrapped by the

factory

workers and placed into a freezer. Following

this

, the frozen

fish

pies are dispatched to the store.