Question

Annual rainfall in the western coast and north eastern India is over _____________
A. 500 cm
B. 600 cm
C. 800 cm
D. 400 cm

Answer 1

Hint:Annual rainfall is the average amount of total rain which that place receives. Western coast of India includes the states of Maharashtra, Goa, Karnataka, Kerala and Tamil Naidu. In North Eastern India, it consists of eight states Assam, Meghalaya, Arunachal Pradesh, Sikkim, Tripura, Manipur, Mizoram and Nagaland.

Complete answer:
There is a subtropical climate in Northeast India that is influenced by its relief and southwest and northeast monsoon influences. The weather conditions affect the Himalayas to the north, the Meghalaya plateau to the south, and the hills of Nagaland, Mizoram and Manipur to the east. It makes North-east the rainiest region in the nation, receiving an annual average rainfall of 2,000 mm (79 in), which during the monsoon season is mostly concentrated in summer. With an annual rainfall of 11,777 mm, Cherrapunji, situated on the Meghalaya plateau, is one of the rainiest places in the world (463.7 in). On the other hand, Winds from the Arabian Sea ascend from 900 to 1200 m up the slopes of the Western Ghats which soon become cool and as a result, very heavy rainfall ranging from 250 cm to 400 cm occurs on the windward side of the Western Ghats. These winds descend and heat up after crossing the Western Ghats.
A radical shift in the weather is brought about by the inflow of the south-west monsoon into India. The windward side of the Western Ghats receives very heavy precipitation early in the season, more than 250 cm. Despite lying in the rain shadow zone, the Deccan Plateau and parts of Madhya Pradesh also receive a certain amount of rain. The highest precipitation of this season occurs in the north-eastern part of the country. Mawsynram receives the highest average rain fauna in the southern ranges of the Khasi Hills.

Hence, the correct answer is option D.

Note:1. From October 1, 2020 annual rainfall recorded in the north eastern states: - Assam (171.6 mm), Nagaland (175.4 mm), and Tripura (246.7 mm) have all reported 'excess rainfall from October 1 onwards compared to their respective long-term average figures for this time frame, while in this period 'usual' precipitation has been recorded by Arunachal Pradesh (172.6 mm), Manipur (169.1 mm), and Mizoram (201 mm).
2. Monsoon 2020 in Western Coast started on a rainy note with swampy conditions over many parts. Thereafter, July was disappointing with a shortfall of 10% giving scare of a disaster. It records 27% excess taking the monsoon tally to 110%. Now for the season to end with ‘Excess’ rainfall, the month of September also needs to record at least 10% more than its normal rains of 170.2mm.