A: El Nino is a climatic change which causes | vedclass

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(C) $El$ $Nino$ is a complex weather pattern resulting from variations in ocean temperatures in the Equatorial Pacific,which leads to significant and

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Assertion is correct,but Reason is incorrect.

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(C) $El$ $Nino$ is a complex weather pattern resulting from variations in ocean temperatures in the Equatorial Pacific,which leads to significant and often deleterious environmental changes globally.However,the Reason provided is incorrect.Tropospheric ozone is primarily formed by photochemical reactions involving nitrogen oxides $(NO_x)$ and volatile organic compounds $(VOCs)$ in the presence of sunlight,not directly as a result of $El$ $Nino$ events.Therefore,the Assertion is correct,but the Reason is incorrect.

$A$: $El$ $Nino$ is a climatic change which causes deleterious environmental changes.
$R$: Increased tropospheric ozone due to $El$ $Nino$ causes a shift of climatic regions.

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$A$: $El$ $Nino$ is a climatic change which causes deleterious environmental changes.$R$: Increased tropospheric ozone due to $El$ $Nino$ causes a shift of climatic regions.