Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

Why is the northward shift of the westerly jet stream linked with monsoon onset?

Answer and explanation

Correct answer: Because it creates favourable conditions for monsoon circulation over South Asia

Answer: A. The westerly jet stream is a fast-moving current of air in the upper atmosphere. Before the summer monsoon, the seasonal heating pattern over the Indian subcontinent changes the upper-air circulation. The westerly jet shifts north of the Himalayas, and this change is associated with the development of conditions that allow the summer monsoon circulation to establish over South Asia. A is correct because it states the connection without claiming that the jet alone causes every part of the monsoon. B is wrong because an upper-air wind shift does not turn seawater fresh. C is wrong because the shift does not remove all clouds; monsoon circulation generally involves widespread cloud formation and rainfall. D is wrong because the relevant seasonal change supports the summer monsoon, not a winter-only monsoon. Memory cue: upper-air circulation changes help open the way for summer monsoon conditions.

Related tags

ClimateIndian MonsoonWesterly Jet StreamUpper-Air CirculationGeographyClass 9 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.