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A body partially floats in wafer when
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Permanent hardness of water cannot be removed by
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In summer, man with excess perspiration feels weak, because of the
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The two branches of a plant give two different fruits : tomatoes and brinjals. This can be explained
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The density of sea water is highest as
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The function of the liver is to
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The temperature for pasteurisation of milk is selected so as to
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What is the most important factor for the growth of pests in stored grains ?
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Age of a tree can be determined
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Which of the following can be said as the “Theory of Darwin”
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