Which of the following is the major cause of the 'October Heat'? MCQ with Answer and Explanation

Explanation:
La Niña is characterized by the accumulation of warm water in the western Pacific, leading to increased rainfall in that region.

Explanation:
The northeastern states receive heavy rainfall due to the orographic effect of the Himalayas, forcing the moisture-laden monsoon winds to rise and condense.

Explanation:
Upslope fog forms when moist air is forced to rise over a mountain slope, cooling adiabatically and condensing into fog. It often covers the windward side of mountains.