Q1. Which is the largest agro-climatic region of Rajasthan?
A Arid western plains
B Hyper arid partial irrigated zone Correct
C Internal drainage dry zone
D Sub humid southern plains
Explanation
The hyper arid partial irrigated zone is treated as the largest agro-climatic region in Rajasthan in the standard state classification, covering a wide western desert-influenced tract. The arid western plains are important, but they are not the largest region in this classification. The internal drainage dry zone is centred more toward inland drainage areas and is smaller. The sub humid southern plains occupy the southern and south-eastern moisture-influenced belt, again much smaller than the western hyper-arid zone asked in the question.