indirect hot water supply
51Value added tax — Taxation An aspect of fiscal policy …
52food preservation — Any method by which food is protected against spoilage by oxidation, bacteria, molds, and microorganisms. Traditional methods include dehydration, smoking, salting, controlled fermentation (including pickling), and candying; certain spices have… …
53Traditional Chinese medicine — Alternative medical systems Traditional Chinese medicin …
54Food — For other uses, see Food (disambiguation). Part of a series on …
55Issues relating to biofuels — There are a number of issues relating to biofuels.Biofuels are proposed as having such benefits as: reduction of greenhouse gas emissions, reduction of fossil fuel use, increased national energy security, increased rural development and a… …
56Yemen — /yem euhn, yay meuhn/, n. 1. Republic of, a country in S Arabia, formed in 1990 by the merger of the Yemen Arab Republic and the People s Democratic Republic of Yemen. 13,972,477; 207,000 sq. mi. (536,130 sq. km). Cap.: (political) San a. Cap.:… …
57Climate change and poverty — link a process and a condition that are interrelated. While the effects of climate change and global warming will have direct effects on the natural environment especially on agriculture, the impact on human civilization is also of concern.… …
58Immigration to the United States — 2000 Census Population Ancestry Map Immigration to the United States has been a major source of …
59Kolkata — Calcutta redirects here. For other uses, see Calcutta (disambiguation). Kolkata (কলকাতা) City of Joy, Cultural Capital of India, Literary Capital of India, City of Furious Creative Energy, City of Palaces, City of All Cities, City of Bridges in… …
60Sudan, The — officially Republic of the Sudan Country, North Africa. Area: 966,757 sq mi (2,503,890 sq km). Population (2002 est.): 37,090,000. Capital: Khartoum. Muslim Arab ethnic groups live in the northern and central two thirds of the country, while… …
