The correct answer of the given question above would be the last option. The important difference between the crystals that Becquerel exposed to sunlight and the crystals that he kept in the drawer is that, there <span>was no difference between the crystals because Becquerel used uranium crystals in both instances. He concluded a mineral containing uranium could produce it's image in a photographic plate both without the sunlight and with sunlight. Hope this answer helps.
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Why the French Wanted Equality
The nobles and clergy were the privileged orders. They were exempt from such direct taxes as the taille, or land tax. Most taxes were paid by the Third Estate—a class that included peasants, artisans, merchants, and professional men. Even among these groups taxes were not equal
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Humans can reverse the damage they have inflicted on the Earth’s water supplies if they reduce their pollution output.
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2: He was the first common man to be elected president.
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