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Q. Nitrogen fixation is a process of
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Q. In winter season, water coming out from hand pumps is Hot because–
Q. Which of the following metal is the heaviest in periodic table among the following
Q. Carbon, diamond and graphite are together called:
Q. Hardness of the water is commonly measured in terms of
Q. Which of the following is an air-borne disease?
Q. The hardest substance available on earth is
Q. The scale of a moving coli meter is
Q. Which among the given elements is not present in stainless steel
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