Chemistry
Which of the process is known as nitrification?

Reaction of nitrogen dioxide with water to form nitric acid
Reaction of Nitrogen Monoxide with oxygen to form nitric acid
Conversion of ammonia to nitrites
Conversion of nitrite to nitric oxide

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Chemistry
Table salt gets moist during rainy season because

Sodium chloride contains hygroscopic impurities like magnesium chloride
Sodium chloride is hygroscopic
Sodium chloride contains some quantity of sodium iodide
Sodium chloride is deliquescent

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