regulation of streams
21Maryland Department of Natural Resources — The Maryland Department of Natural Resources (DNR) is a government agency in the state of Maryland charged with maintaining natural resources such as the 66 state parks, public lands, state forests, state waterways, wildlife and recreation areas …
22Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… …
23environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
24Government of France — This article is about the political and administrative structures of the French government. For French political parties and tendencies, see Politics of France. For a history of how the current constitution was enacted, see French Fifth Republic …
25List of Tesla patents — Below is a list of Tesla patents. Dr. Nikola Tesla was an inventor who obtained around 300 patents [Snezana Sarbo, [http://www.tesla symp06.org/papers/Tesla Symp06 Sarboh.pdfNikola Tesla s Patents] , Sixth International Symposium Nikola Tesla,… …
26Murray cod — Conservation status Critically Endangered  …
27Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …
28Sellafield — Aerial view of the site …
29Macquarie perch — Taxobox name = Macquarie perch status = DD status system = iucn2.3 image width = 240px image caption = This exceptionally large Macquarie perch was caught on a lure (visible in the picture) and was carefully released. regnum = Animalia phylum =… …
30Mountain yellow-legged frog — Conservation status Endangered (IUCN 3 …
