UPSC Prelims Mini Mock Test: 258

1. Consider the following statements:  1. Biological Nitrogen Fixation occurs in absence of Oxygen only 2. Only Symbiotic Bacteria can fix atmospheric Nitrogen  Which among the above statements is / are correct ? 2. With reference to the Tropical Cyclones, which among the following is / are correct observation(s)? All Tropical Cyclones are formed in low ..

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