water-power development
41Water supply and sanitation in Argentina — Argentina faces five key challenges in the water supply and sanitation sector: (i) low coverage with higher levels of service provision for its income level; (ii) poor service quality; and (iii) high levels of pollution; (iv) low cost recovery;… …
42Water in California — Map of water storage and delivery facilities as well as major rivers and cities in the state of California California’s interconnected water system serves over 30 million people and irrigates over 5,680,000 acres (2,300,000 ha) of farmland. As… …
43Water supply network — Public infrastructure …
44Water turbine — A water turbine is a rotary engine that takes energy from moving water.Water turbines were developed in the nineteenth century and were widely used for industrial power prior to electrical grids. Now they are mostly used for electric power… …
45Development of Darwin's theory — Following the inception of Charles Darwin s theory of natural selection in 1838, the development of Darwin s theory to explain the mystery of mysteries of how new species originated was his prime hobby in the background to his main occupation of… …
46Development geography —   High human development …
47Water Buffalo — This article is about the domesticated Water Buffalo. For its endangered wild ancestor, see Wild water buffalo. For the wild African species, see African buffalo. For other uses, see Water buffalo (disambiguation). Water Buffalo Water buffalo cow …
48Water cooling — Cooling tower and water discharge of a nuclear power plant Water cooling is a method of heat removal from components and industrial equipment. As opposed to air cooling, water is used as the heat conductor. Water cooling is commonly used for… …
49Water resources in Mexico — {| style= width: 25em; font size: 90%; text align: left; class= infobox !align= center bgcolor= lightblue colspan= 2 |Mexico: Water Resources #if:{ }|Water resources in many parts of Mexico are under stress, especially in the arid northwest and… …
50Water supply and sanitation in Colombia — There are many more citizens who live in areas corresponding to classes 1–3 than those who live in the areas corresponding to classes 5 and 6. For example, in Bogotá 73% of the population live in zones of classes 1–3, whereas only 10% live in… …
