irrigation efficiency
101Economic history of China before 1911 — For developments after 1911, see Economic history of Modern China. A Chinese dragon seen floating among clouds, engraved on a golden canteen dated to the 15th century, during the …
102Diliprao Deshmukh — Minister Rehabilitation and Relief Work, Sports, Youth Welfare Protocol Government of Maharashtra In office 1 March 2009 – 8 December 2009 …
103Water supply and sanitation in Pakistan — Drinking water qualityGenerally, water pressure is low in Pakistani supply systems. Together with leaky pipes, this has led to infiltration of contaminated water. As a result of sewage and industrial waste, which leaked into drinking water… …
104Pakistan — /pak euh stan , pah keuh stahn /, n. 1. Islamic Republic of, a republic in S Asia, between India and Afghanistan: formerly part of British India; known as West Pakistan from 1947 71 to distinguish it from East Pakistan (now Bangladesh).… …
105ancient Greek civilization — ▪ historical region, Eurasia Introduction the period following Mycenaean civilization, which ended in about 1200 BC, to the death of Alexander the Great, in 323 BC. It was a period of political, philosophical, artistic, and scientific… …
106Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
107Columbia River — Coordinates: 46°14′39″N 124°3′29″W / 46.24417°N 124.05806°W / 46.24417; 124.05806 …
108The Waterwise Project — Infobox Non profit Non profit name = The Waterwise Project Non profit vector Non profit type = Not for profit, non governmental organisation founded date = September 2005 founder = location city = location country = location = London, United… …
109Climate change mitigation — Fossil fuel related CO2 emissions compared to five of IPCC s emissions scenarios. The dips are related to global recessions. Data from IPCC SRES scenarios; …
110Dam — This article is about structures for water impoundment. For other uses, see Dam (disambiguation). Hoover Dam, a concrete arch gravity dam in Black Canyon of the Colorado River. Lake Mead in the background is impounded by the dam …
