Nullah (Hindi for an arm of the sea, stream, or watercourse), a steep narrow valley. Hindi ( Devanāgarī: hi [[wiktहिन्दी हिन्दी]] or hi [[wiktहिंदी हिंदी]] IAST:, IPA:) is An arm of the sea (or Sea Arm) may refer to a Sea loch or Arms of the Sea, a 2006 album by Celtic musician Heather A stream is a body of Water with a current, confined within a bed and stream-banks A watercourse is any flowing body of Water. These include Rivers Streams Brooks Anabranches et cetera In Geology, a valley (also called a vale, dale, glen or strath and near or in Appalachia, a draw) is Like the wadi of the Arabs, the nullah is characteristic of mountainous or hilly country where there is little rainfall. Wadi (وادي) (also Vadi) is traditionally a valley In some cases it can refer to a dry riverbed that contains water only during times of heavy rain The araB gene Promoter is a bacterial promoter activated by e L-arabinose binding In the drier parts of India, and in many parts of Australia there are small steep-sided valleys penetrating the hills, clothed with rough brushwood or small trees growing in the stony soil. India, officially the Republic of India (भारत गणराज्य inc-Latn Bhārat Gaṇarājya; see also other Indian languages) is a country For a topic outline on this subject see List of basic Australia topics. 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 Hong Kong, a nullah is typically a concrete lined channel designed to allow rapid run off of storm water from high ground, to prevent flooding of urbanised coastal areas. Hong Kong ( officially the Hong Kong Special Administrative Region, is a territory located on China 's south coast on the Pearl River Delta, and borders

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