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The sentence "Planck proposed that the total energy of light is made up of indistinguishable energy elements, or a QUANTA of energy" should be corrected as follows:
"Planck proposed that the total energy of light is made up of indistinguishable energy elements, or a QUANTUM of energy", because "quantum" is singular, while "quanta" is plural

what is the most em spectrum that could be leveraged to extract the most of the sun power from it? and what is the distribution of em spectrum-sun power from the most to the least power chart?