Arrange the following in increasing order of rainfall variation obser...
A characteristic feature of rainfall in India is its variability. The variability of rainfall is computed with the help of the following formula:
C.V. = Standard Deviation x 100/ Mean; where C.V. is the coefficient of variation, o The values of coefficient of variation show the change from the mean values of rainfall. The actual rainfall in some places deviates from 20-50 per cent. The values of coefficient of variation show variability of rainfall in India.
o A variability of less than 25 per cent exists on the western coasts, Western Ghats,
northeastern Peninsula, eastern plains of the Ganga, northeastern India, Uttarakhand and Himachal Pradesh and south-western part of Jammu and Kashmir. These areas have an annual rainfall of over 100 cm.
o A variability of over 50 per cent exists in the western part of Rajasthan, northern part of Jammu and Kashmir and interior parts of the Deccan plateau. These areas have an annual rainfall of less than 50 cm. o Rest of India (including Punjab plains) has a variability of 25-50 per cent and these areas receive an annual rainfall between 50-100 cm. Hence the correct answer is option (b).
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Arrange the following in increasing order of rainfall variation obser...
Explanation:
The given options are Western Ghats, Thar desert, Punjab Plains. We need to arrange them in increasing order of rainfall variation observed in India.
1. Western Ghats:
The Western Ghats are a mountain range along the western coast of India. They receive heavy rainfall due to the southwest monsoon winds. The average annual rainfall in the Western Ghats ranges from 2,500 to 4,000 mm.
2. Punjab Plains:
The Punjab Plains are located in the northwestern part of India. They experience a semi-arid climate with moderate to low rainfall. The average annual rainfall in the Punjab Plains ranges from 300 to 700 mm.
3. Thar desert:
The Thar desert is a large arid region in northwestern India. It is one of the driest regions in India with very low rainfall. The average annual rainfall in the Thar desert is less than 250 mm.
Based on the given information, the correct order of increasing rainfall variation observed in India is:
1. Thar desert (lowest rainfall variation)
2. Punjab Plains
3. Western Ghats (highest rainfall variation)
Hence, the correct answer is option b) 1-3-2.
Arrange the following in increasing order of rainfall variation obser...
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