underground storage system
51Tunnel — This article is about underground passages. For other uses, see Tunnel (disambiguation). Underground tunnel for heatpipes between Rigshospitalet and Amagerværket in Denmark …
52Mitigation of global warming — involves taking actions to reduce greenhouse gas emissions and to enhance sinks aimed at reducing the extent of global warming. [ [http://www.ipcc.ch/pdf/glossary/ar4 wg3.pdf IPCC Glossary Working Group III, p. 818] ] This is in distinction to… …
53São Paulo — This article is about the city. For the state, see São Paulo (state). For other uses, see São Paulo (disambiguation). São Paulo   Municipality   Município de São Paulo Municipality of São Paulo …
54Moscow — /mos koh/ or, for 1, 2, / kow/, n. 1. Russian, Moskva. a city in and the capital of the Russian Federation, in the W part: capital of the former Soviet Union. 8,967,000. 2. Also called Grand Duchy of Moscow. Muscovy (def. 1). 3. a city in W Idaho …
55Adventure game — An adventure game is a type of video game characterized by investigation, exploration, puzzle solving, interaction with game characters, and a focus on narrative rather than reflex based challenges. The term originates from the 1970s game… …
56Title 40 of the Code of Federal Regulations — Title 40 is a part of the United States Code of Federal Regulations. Title 40 arranges mainly environmental regulations that were promulgated by the US Environmental Protection Agency (EPA), based on the provisions of United States laws (statutes …
57cave — cavelike, adj. /kayv/, n., v., caved, caving. n. 1. a hollow in the earth, esp. one opening more or less horizontally into a hill, mountain, etc. 2. a storage cellar, esp. for wine. 3. Eng. Hist. a secession, or a group of seceders, from a… …
58New York City Subway — Top: A number 4 train made up of R142 …
59rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… …
60Rock — /rok/, n. a male given name. * * * I In geology, a naturally occurring and coherent aggregate of minerals. The three major classes of rock igneous, sedimentary, and metamorphic are based on the processes that formed them. These three classes are… …
