Explanations:The annual rainfall in India varies significantly across different regions due to factors such as proximity to the sea, topography, and prevailing wind patterns. The monsoon winds play a crucial role in determining the rainfall distribution in the country. The regions mentioned in the question are located in the northern part of India, and their rainfall patterns are influenced by the monsoon winds and their geographical features.
Western Uttar Pradesh, Haryana, and Punjab are located in the northwestern part of India and are influenced by the monsoon winds. These regions receive a significant amount of rainfall during the monsoon season, typically between 50-100 cm annually. The monsoon winds bring moisture from the Arabian Sea and the Bay of Bengal, which results in substantial rainfall in these regions. The presence of the Himalayas also plays a role in the rainfall distribution, as the mountains act as a barrier to the monsoon winds, causing them to rise and cool, leading to precipitation.
Eastern Rajasthan, located in the eastern part of the state, also receives between 50-100 cm of annual rainfall. This region is influenced by the monsoon winds and has a semi-arid to sub-humid climate. The rainfall in this region is more substantial compared to the western part of Rajasthan, which is more arid and receives much less rainfall, typically less than 50 cm annually.
Western Rajasthan, on the other hand, is a desert region and receives much less rainfall due to its arid climate. The region is far from the sea and is not significantly influenced by the monsoon winds. The lack of moisture and the presence of the Thar Desert contribute to the low rainfall in this region.
Therefore, the correct answer is Option A, which includes Western Uttar Pradesh, Haryana, Punjab, and Eastern Rajasthan. These regions receive between 50-100 cm of annual rainfall, while Western Rajasthan does not fall within this range.