Climate – Seasons, Monsoons & Rainfall Patterns Quiz - ICSE Class 10 Geography
Free practice quiz: Climate – Seasons, Monsoons & Rainfall Patterns (ICSE Class 10 Geography). 40 multiple-choice questions with answers and explanations. Play online, no sign-up needed.
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What is the primary reason for the extreme aridity experienced in the Thar Desert, despite its proximity to the Arabian Sea branch of the monsoon?
- The presence of the Aravalli Range.
- The southward deflection of the monsoon winds by the Western Ghats.
- The high temperature causing rapid evaporation.
- The formation of a rain shadow region.
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Answer: D. The formation of a rain shadow region.
The Thar Desert lies in the rain shadow of the Aravalli Range. As the moisture-laden winds from the Arabian Sea approach, they are deflected northwards by the Western Ghats. When they encounter the Aravallis, they rise and precipitate on the windward side, leaving the leeward side (Thar Desert) dry.
The 'Loo' is a characteristic feature of the weather during which season in Northern India?
- Winter Season
- Summer Monsoon Season
- Pre-Monsoon Season
- Post-Monsoon Season
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Answer: C. Pre-Monsoon Season
The Loo is a strong, hot, and dry wind that blows across the northern plains of India, particularly in the Punjab, Haryana, Uttar Pradesh, and Rajasthan regions, during the summer months (April to June). It is a phenomenon of the pre-monsoon season.
The western parts of India, particularly Rajasthan, receive very little rainfall during the Southwest Monsoon because:
- The monsoon winds are dry and do not carry sufficient moisture.
- The region is located in a rain shadow behind the Aravalli Range.
- The Arabian Sea branch of the monsoon weakens significantly before reaching the region.
- The Bay of Bengal branch of the monsoon is deflected away from this region.
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Answer: B. The region is located in a rain shadow behind the Aravalli Range.
The Aravalli Range is oriented parallel to the direction of the monsoon winds. The Arabian Sea branch of the monsoon winds move northwards, largely bypassing the Aravallis. Rainfall occurs on the windward side (like the Western Ghats). The region to the leeward of the Aravallis, including much of Rajasthan, lies in a rain shadow.
The high temperatures and dry conditions experienced in Northern India during April-May are primarily caused by:
- The onset of the Southwest Monsoon.
- The influence of retreating monsoon winds.
- The movement of the ITCZ northwards and intense solar insolation.
- The arrival of cold waves from Siberia.
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Answer: C. The movement of the ITCZ northwards and intense solar insolation.
During April and May, the Inter Tropical Convergence Zone (ITCZ) shifts northwards, and the sun's rays fall directly over Northern India. This leads to intense heating of the land, resulting in high temperatures and dry conditions, often accompanied by the 'Loo' wind.
The rainfall received by the Coromandel Coast during October-November is primarily due to:
- The Southwest Monsoon.
- The retreating Northeast Monsoon.
- The advancing Northeast Monsoon.
- Western Disturbances.
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Answer: C. The advancing Northeast Monsoon.
The Northeast Monsoon, also known as the retreating monsoon, picks up moisture from the Bay of Bengal as it moves southwestward. This moisture leads to significant rainfall along the Coromandel Coast (Tamil Nadu, parts of Andhra Pradesh and Kerala) during autumn.