With reference to the Western Disturbances, which among the following observations is / are correct?
1. They blow from east to west
2. They originate in West Asia
3. They are helpful in Cotton and Groundnut crops in India
Choose the correct option from the codes given below:

Answer: [D] Only 2

These are temperate winds which originate in West Asia, the Mediterranean sea and at times even as far as Atlantic Ocean and happen to reach Afghanistan, Pakistan and North-West India. These happen to reach our part of the world  more in winter because of the southward shift of the polar front in winter. Since, the temperate cyclones reach India in winter from the west , they are called ‘Western Disturbances’. So, during winter, Western Disturbances cause rainfall in Northern and North West India. The Western Disturbances lead to winter rainfall , which is beneficial for Rabi crop (wheat). In this question, Cotton and Groundnut both are Kharif crops.

This question is a part of GKToday's Integrated IAS General Studies Module