Torch parts

This task is about explaining what the different parts of a torch do.
Look at the torch you have been given, you can open it, examine the batteries and the inside.

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a) Explain how the batteries of the torch allow the torch to work or make it useful.

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b) Explain how the switch of the torch allows it to work or makes it useful.

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c) Explain how the reflective collar of the torch allows it to work or makes it useful.

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d) Explain how the bulb of the torch allows it to work or makes it useful.

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e) Explain how the plastic casing of the torch allows it to work or makes it useful.