Fuel used in a nuclear reactor is
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The heater element in an electric iron is made of
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Range of Television Broadcasting is confined to a limited distance because
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Dialysis is used for a patient suffering from?
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Green colour of plants is due to the presence of
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Dry ice is ?
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Neil Armstrong was the first person to reach on the moon. While walking on the moon
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Distance of stars is measured in
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The deficiency of Vitamin D causes
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Isotopes of the same element differ in the number of
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