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92:, there are small steep-sided valleys penetrating the hills, clothed with rough brushwood or small trees growing in the stony soil. During occasional heavy rains, torrents rush down the nullahs and quickly disappear. There is little local action upon the sides, while the bed is lowered, and consequently these valleys are narrow and steep. In cities on the
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plain in India, nullahs are concrete or brick-lined ditches about 3 metres (10 ft) deep and 6 metres (20 ft) wide, used to divert
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Encroachment into nullahs is a significant problem in many South Asian cities, since it hampers the drainage of
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297:"FYI: Why do some Hong Kong street names seem to have no connection to the area they are in?"
221:"Outdated stormwater system and encroached nullahs increase risk of 'urban flooding' in Pune"
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in urbanised coastal areas, and basically is an often dry
246:"'Encroachment of nalas led to flooding in Hyderabad'"
195:used as a reserve drain. One such example is the
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357:(11th ed.). Cambridge University Press.
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187:from high ground, to prevent flooding or
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295:Wordie, Jason (January 20, 2008).
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100:rain away from the cities.
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57:) is an 'arm of the sea',
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301:South China Morning Post
175:designed to allow rapid
377:Hindi words and phrases
354:Encyclopædia Britannica
315:(subscription required)
88:, and in many parts of
21:Nullah (disambiguation)
80:In the drier parts of
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387:Indian English idioms
185:industrial wastewater
173:flood control channel
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19:For other uses, see
16:Steep, narrow valley
179:of stormwater or a
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382:Geography of India
225:The Indian Express
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227:. 15 October 2020
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366:Categories
307:January 8,
281:2020-10-30
256:2020-10-30
231:2020-10-30
207:References
189:stagnation
167:'open
143:Wade–Giles
105:stormwater
51:Hindustani
201:Hong Kong
158:ming keoi
148:ming-chʻü
121:East Asia
90:Australia
181:sewerage
177:drainage
153:Jyutping
86:Pakistan
372:Valleys
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125:Chinese
98:monsoon
73:of the
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349:Nullah
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155::
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138:míngqú
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133:pinyin
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109:floods
67:valley
59:stream
43:nullah
193:canal
169:ditch
115:Canal
94:Delhi
82:India
75:Arabs
61:, or
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32:Spiti
309:2014
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