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Earlier discussion
2 older comments kept for context.
isaac alamu
i agree with that A
Oluwaseun Adeyemi
Lightning discharges are a major source of nitrogen oxide gases. The two primary gases, nitrogen(II) oxide and nitrogen(IV) oxide are formed during the lightning discharge when the air is heated to 30,000 degrees inside the lightning channel.
Since air is made up of approximately 80% nitrogen and 20% oxygen, these molecules breakup into nitrogen and oxygen atoms. When the channel expands outwards and cools, new compounds form as a result of the nitrogen and oxygen atoms recombining. The amount of nitrogen oxide gases formed is related to the rate of cooling of the channel.