State two different uses of light energy.
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Light energy is used to help us see – either naturally using the Sun or fire, or with manmade objects like candles or lightbulbs. Light energy is also used by plants, which capture the light energy from the Sun and use it to produce their food.
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Food formation
Growth of the human body
Regulation of Physiology
Sight and vision
Heat and temperature
Drying & evaporation
For speed regulation
Source of electrical energy
Chemical analysis by spectroscopy
Sanitation of earth
Killing germs viz: microorganisms
Signaling system
Sterilization process
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