air and water rates
51Space accidents and incidents — Space accidents, either during operations or training for spaceflights, have killed 22 astronauts (five percent of all people who have been in space, two percent of individual spaceflights), and a much larger number of ground crew. This article… …
52List of U.S. Marine Corps acronyms and expressions — This is a list of acronyms, expressions, euphemisms, jargon, military slang, and sayings in common or formerly common use in the United States Marine Corps. Many of the words or phrases have varying levels of acceptance among different units or… …
53Comparison of Canadian and American economies — The economies of Canada and the United States are extremely similar because they are both developed countries and are each other s largest trading partners. However, key differences in population makeup, geography, government policies and… …
54New York City water supply system — New York City s water supply system is one of the most extensive municipal water systems in the world. This complex system relies on a combination of tunnels, aqueducts and reservoirs to meet the daily needs of 8 million residents and many… …
55Cold Regions Research and Engineering Laboratory — Established 1 February 1961 (1 February 1961) Research Type …
56Notes, Definitions, And Abbreviations — There have been some significant changes in this edition. The Trust Territory of the Pacific Islands became the independent nation of Palau. The gross domestic product (GDP) of all countries is now presented on a purchasing power parity (PPP)… …
57American Recovery and Reinvestment Act of 2009 — Stimulus bill redirects here. For other uses, see Stimulus bill (disambiguation). ARRA redirects here. For other uses, see ARRA (disambiguation). American Recovery and Reinvestment Act of 2009 Full title An act making supplemental appropriations… …
58List of pseudosciences and pseudoscientific concepts — This is a list of fields of endeavor and concepts regarded as pseudoscientific by organizations within the international scientific community or by notable skeptical organizations. The existence of such expressed opinions suffices for inclusion… …
59Bosnia and Herzegovina — <p></p> <p></p> Introduction ::Bosnia and Herzegovina <p></p> Background: <p></p> Bosnia and Herzegovina s declaration of sovereignty in October 1991 was followed by a declaration of independence… …
60Hard water — is the type of water that has high mineral content (in contrast with soft water ). Hard water minerals primarily consist of calcium (Ca2+), and magnesium (Mg2+) metal cations, and sometimes other dissolved compounds such as bicarbonates and… …
