Which factor contributes to the occurrence of rainfall in the north-western parts of India during winters?​

Correct option is C

Western disturbances:

·        Western disturbances is an extratropical storm that originates from the Mediterranean region and brings sudden winter rain to North-Western part of Indian subcontinent.

·        This precipitation pattern is derived by Westerlies.

·        These extratropical storms are a global phenomenon where the moisture is generally carried in the upper atmosphere.

·        Whereas the tropical counterparts carry moisture in lower atmosphere.

·        When these storms encounter the natural barrier in the Himalayas, moisture is sometimes shed in the form of rain in the North Western Indian subcontinent.

·        Western disturbances cause rainfall during winter in the north western part of India.

·        Western Disturbances are important to the development of the Rabi crop in the northern subcontinent, which includes the locally important staple wheat.

Incorrect options explanation:

·        The Southwest Monsoon, also known as the summer monsoon, is a crucial seasonal wind system in India that brings substantial rainfall to the Indian subcontinent. It typically occurs from June to September.

·        Trade winds are consistent, prevailing winds that blow from east to west near the Earth's equator. They are a crucial part of global atmospheric circulation, playing a significant role in weather patterns and ocean currents.

·        The Northeast Monsoon, also known as the Retreating Monsoon, is a crucial seasonal wind system in India that brings significant rainfall to certain regions, particularly in southeastern India. It occurs from October to December.