1. The retreating monsoon begins with:
A) Sudden reversal of trade winds in May
B) Southward shift of ITCZ in September
C) Onset of Western Disturbances
D) Strengthening of southeast trade winds in the Southern Hemisphere
2. Which of the following areas receives the least rainfall due to the southwest monsoon?
A) Western Ghats
B) Thar Desert
C) Meghalaya Hills
D) Konkan Coast
3. What is the chief source of rainfall over northwestern India during December to February?
A) Southwest monsoon
B) Bay of Bengal depressions
C) Western Disturbances
D) Northeast trade winds
4. In which of the following years did India experience a strong La Niña event leading to above-normal monsoon?
A) 2002
B) 2015
C) 2020
D) 1987
5. Which of the following explains why ENSO significantly affects the Indian monsoon?
A) It controls jet stream movement in the stratosphere
B) It alters sea surface temperature and atmospheric circulation patterns in the Pacific and Indian Oceans
C) It causes melting of glaciers affecting monsoon moisture
D) It enhances the Coriolis effect
Answer Quiz-154 (July 10)
1. C
Explanation: The SOI measures the pressure difference between Tahiti (eastern Pacific) and Darwin (Australia). A negative SOI usually corresponds to El Niño.
2. C
Explanation: Breaks in the monsoon occur when the monsoon trough shifts northwards toward the Himalayas, leading to dry spells over central and peninsular India.
3. C
Explanation: Soil type doesn’t influence rainfall patterns directly. Topography, proximity to the sea, and cyclonic influences do.
4. D
Explanation: The TEJ establishes during the summer and flows east to west (easterly), aiding in pulling monsoonal winds into India.
5. C
Explanation: Hippalus, a Greek navigator, identified the pattern of seasonal southwest monsoon winds, enabling open-sea trade from Arabia to India.
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