Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses?
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If saving exceeds investment, the national income will ___________.
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Sadir is a name of which ancient dance style of India?
Which of the following metals is found in free state?
What is the transplantation of graft between genetically identical individuals ?
Among the world oceans, which ocean is having the widest continental shelf ?
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