Give a geographical reason for each of the following:

(i) Heatwaves in the end of April are experienced in the northern plains.

(ii) Tropical cyclones are common in the Bay of Bengal as compared to the Arabian Sea.

(iii) The Indo-Gangetic Plain gets some rainfall in the months of December and January.

(i) The Northern Plains of India experience heatwaves at the end of April due to several geographical reasons. During this time, the Sun starts moving northward, increasing the intensity of solar radiation over the region. The clear skies, dry land surface, and continental type of climate cause rapid heating. In addition, hot, dry winds called Loo blow across the plains, further raising the temperature and leading to heatwave conditions.

(ii) Tropical cyclones are more common in the Bay of Bengal than in the Arabian Sea because the Bay of Bengal is surrounded by land that traps heat. Due to this, the Bay of Bengal has warmer sea surface temperatures, which provide more moisture and energy for cyclone formation.

(iii) The Indo-gangetic plain gets some rainfall in the month of December and January because of the Western Disturbances, which originate in West Asia and in the regions near the Mediterranean sea. These westerly depressions bring winter rainfall over the Indo-Gangetic Plains.