Photovoltaic cells are used in solar lighting, often used to light up a sidewalk or garden. The lights gather energy from the sun during daylight hours in order to shine at night. Which of the following is the main element used to produce electricity in a photovoltaic cell?
A) gaseous hydrogen
B) solid silicon
C) Liquid water
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Photovoltaic cells are used in solar lighting, often used to light up a sidewalk or garden. The ligh...
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