Seasons of India
Seasons of India
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quiz Questions
Q81
Which structural parameter shift defines the operational declaration of a formal 'Monsoon Break' across the agricultural heartland of the Indo-Gangetic plains?
The absolute dissolution of upper air westerlies south of Delhi
The northward migration of the low-pressure monsoon trough axis toward the foothills
A sudden sharp drop in sea surface temperatures near the Malabar coastline
The immediate drying up of surface layer soil moisture in Punjab
Explanation
A monsoon break over the plains is characterized by the low-pressure monsoon trough axis moving completely northwards to the Himalayan foothills, causing an end to rain across the plains.
Q82
The severe pre-monsoon convective thunderstorms known as 'Mango Showers' over Kerala and coastal Karnataka are triggered by which atmospheric driver?
The sudden southward collapse of the Tibetan upper anticyclone core
Localized intense solar land heating interacting with maritime moisture inflows
The down-slope spilling of cold katabatic currents from Nilgiri peaks
The structural failure of the equatorial easterly current velocity cell
Explanation
Intense thermal heating of the peninsular landmass during summer creates local low pressure, pulling in maritime moisture from the adjoining warm seas to trigger unstable convective thunderstorms.
Q83
The physical mechanism behind the 'Break in the Monsoon' over India is characterized by the absolute sea-level pressure rising significantly over which core region?
The high altitudinal passes of Sikkim
The core plains of Central India
The deep oceanic trench near Nicobar
The coastal shelf of western Saurashtra
Explanation
During a classic monsoon break, sea-level atmospheric pressure values surge noticeably over Central India, indicating the absolute breakdown and northward migration of the rainy trough axis.