atmosphere & climatology section 5 MCQ Questions & Answers Detailed Explanation

Answer: (b)

Western Disturbance is an extratropical storm originating in the Mediterranean region that brings sudden winter rain to the northwestern parts of the Indian subcontinent.

Jet streams play an important role in bringing these disturbances to India. Western disturbances are generally active from December to February.

Answer: (b)

Answer: (d)

Stratosphere is the second layer of the atmosphere, extends to a height of 50 km above the earth.

Answer: (b)

Answer: (b)

• The Santa Ana winds are strong, extremely dry down-slope winds that originate inland and affect coastal Southern California and northern Baja California.
• A Chinook wind is a weather phenomenon that creates warm, dry air that blows down the eastern slopes of the Canadian Rockies. The name Chinook means “snow eater,” as the wind occurs most frequently in winter and can disrupt snowstorms and melt fallen snow.
• A föhn or foehn is a type of dry, warm, down-slope wind that occurs in the lee (downwind side) of a mountain range. Föhn can be initiated when deep low pressures move into Europe drawing moist Mediterranean air over the Alps. Zonda wind is a regional term for the foehn wind that often occurs on the eastern slope of the Andes, in Argentina.
• The Zonda is a dry wind (often carrying dust) that comes from the polar maritime air, warmed by descent from the crest, which is approximately 6,000 m (20,000 ft) above sea level.

Answer: (d)