silt factor
21Shoal — Bar (landform) redirects here. For other uses, see Bar (disambiguation)#Landforms. Sandbank redirects here. For other uses, see Sandbank (disambiguation). For other uses, see Shoal (disambiguation). Sandbar between St. Agnes and Gugh on the Isles …
22Chilika Lake — Chilka Lake Fishermen pushing against the tide Coordinates …
23Precambrian time — Interval of geologic time from с 3. 8 billion years ago, the age of the oldest known rocks, to 544 million years ago, the beginning of the Cambrian Period. This interval represents more than 80% of the geologic record and thus provides important… …
24irrigation and drainage — ▪ agriculture Introduction artificial application of water to land and artificial removal of excess water from land, respectively. Some land requires irrigation or drainage before it is possible to use it for any agricultural production; other… …
25Koshi River — Coordinates: 25°24′43″N 87°15′32″E / 25.41194°N 87.25889°E / 25.41194; 87.25889 …
26Muthupet —   city   …
27Brahmaputra River — River, Central and South Asia. From its headsprings in Tibet (as the Zangbo River), it flows across southern Tibet to break through the Himalayas in great gorges (where it is known as the Dihang). It flows southwest through the Assam Valley and… …
28Muthupet Lagoon — is located at the southern end of the Cauvery river delta on the Bay of Bengal, covering an area of approximately 6,803.01 ha of which only 4% is occupied by well grown mangroves. The rivers Paminiyar, Koraiyar, Kilaithankiya …
29Arabic language — Arabic redirects here. For other uses, see Arabic (disambiguation). For the literary standard, see Modern Standard Arabic. For vernaculars, see varieties of Arabic. For others, see Arabic languages. Arabic العربية/عربي/عربى al ʿarabiyyah/ʿarabī …
30Nile — For other uses, see Nile (disambiguation). Coordinates: 30°10′N 031°06′E / 30.167°N 31.1°E / 30.167; 31.1 …
