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The North Sea

The North Sea. Geography. The North Sea - shelf sea placed between : Denmark , Switzerland , Norway , British Isles , Germany Belgium , Netherlands and France. It is connected with Baltic because of sea straits . Surface area : 750,000 km 2 Average depth : 95 m

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The North Sea

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  1. The North Sea

  2. Geography • The North Sea- shelfseaplacedbetween: Denmark, Switzerland, Norway, British Isles, Germany Belgium, Netherlands and France. ItisconnectedwithBalticbecause of seastraits. • Surface area: 750,000 km2 • Averagedepth: 95 m • Max depth: 700 m • Resources: natural gas, petroleum, coal • Max temperature: 17°C • Min temperature: 6°C • Salinity: 35‰

  3. The North Sea fauna • In spite of havingsimilarclimateinthe North Seaexistthat same animalslikeintheBalticSealike: seals and porpoises. Thebiggercomposition of salt let to functionmoreseaorganismwhichareaddicted to necessarysalinity. We canpresent: • herring • flounder • hake • rabbitfish • electric ray • shortfinmakoshark • baskingshark • seaduck • auk • bottlenosedolphin • harborseal • walrus And… somespecies of whales.

  4. The North Sea Flora • Plant specieslikelyinBalticincludespecies of wrack, algae and kelp. Amongthese we canfeature: • bladderwrack • Knottedwrack • macroalgal • seagrass • In the North Seaexistnew, invasivespecies of plant called „japaneseseaweed”.

  5. The North Sea- Advantages • The North Sea for a long time isimportantcommunicationroutewhereshipscaneaslyget on themainlandin many countries of Europe. Developedfishing (herring, mackerel, flounder, cod) is big source of income as well as extraction natural gas and crude oil (thereisstill not discoveredsources). On the North Seaareplaced one of thebiggestharborsintheworld: Netherlands- Rotterdam and Amsterdam, Big Britain- London, Newcastle or Germany- Hamburg.

  6. Factshiddeninthe North Sea • Organic bomb- about 65 tons of mercuryhavebeendiscovered on thebottom of seaindestroyed german shipin 1945, 10 years ago. Fromthis time nobodymade a decissionwhat to do withdangerousrootcontainmentintherusted steel bottles. • Distaster of BalticAce- 5th December 2012 yeartwoships: „BalticAce” and „CorvusJ”collided. In disasterdied 11/24 persons of crew „BalticAce”. In squad was 11 Poles (also leader), Bulgarians, Ukraines and Filipinos. Still not foundremains of 6 people. Fortunatelynobodyfrom 2nd shipdied. • Historycontainedinskarhfangs- Scientiststhinkthatthanks of sharktusks we canmeethistory of climate of the North Sea. Defensethat 55 m.y.a. water of thissea was almostsuchfresh as thisinlakestodays. Effects of salinity on sharkfangs was much less formerlythannowadays.

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