Which of the following process is not associated with formation of met

1.	Which of the following process is not associated with formation of metal nitrates in soil ?
Answer» Acid rain Nitrogen FIXATION by leguminous plants Lightning followed precipitation Formation of AURORAS Solution :Acid rain, nitrogen fixation and lighterning processes are associated with the formaion of metal `HNO_(3)` when reacts reacts with salts present in the soil, gets converted to CORRESPONDING metal nitrates. Formation of auroras involves collision of ELECTRONS with molecules of `N_(2)" ana "O_(2)` and emission of beautiful RADIATIONS. It does not result in formation of nitrates.

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