Everyday Science
The major ingredient of leather is__________________?
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Glass is made of the mixture of______________?
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Rusting of iron involves_______________?
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How long does the earth take to cover 1° longitude?
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Microphone converts sound energy into ___________?
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1 BTU (British thermal unit) is equal to___________?
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Dengue fever is also called___________?
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Which element is used as moderator in nuclear reactor?
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Which of the following rays are more penetrating?
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