Question

Explain the role of power / energy in our lives and its uses.
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Answer 1

Answer:

When we talk about energy saving, most of you remember being care free children at home and the adults being in a constant need to urge you to switch off the lights or the television or the washing machine. Now that you are an adult, you understand why it was important to actually do things such as switching off the lights when you leave a room.

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Answer 2

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Energy produced from food in the human body is used to maintain the body's essential functions (e.g. cell growth and repair, respiration, blood transport) and perform physical tasks including work, exercise and recreational activities