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ব্যবহারকারী:FaysaLBinDaruL/খেলাঘর ৩: সংশোধিত সংস্করণের মধ্যে পার্থক্য

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==উন্নয়ন ও পরিবেশ==
আথাবাস্কা হ্রদের উত্তর তীরে [[ইউরেনিয়াম|ইউরেনিয়াম]] ও [[স্বর্ণ|স্বর্ণের]] খনি আবিষ্কারের কারণে ইউরেনিয়াম সিটির গোড়াপত্তন ঘটে। হ্রদ তীরের শহরটিতে মূলত খনি শ্রমিক ও তাদের পরিবারের সদস্যরা বসতি স্থাপন করেছিল।১৯৮০'র দশকে সর্বশেষ খনি বন্ধ হওয়ার আগে আথাবাস্কা হ্রদের উত্তর তীরের জল ও পরিবেশ অতিমাত্রায় দূষিত হয়েছিল।ধারণা করা হয়, হ্রদের কাছেই আথাবাস্কা নদীর তীরে থাকা বিটুমিন বালু উত্তোলন হ্রদের পরিবেশ আরো দূষিত করেছে।<ref name="Npr">
[[Uranium]] and [[gold]] [[mining]] along the northern shore resulted in the birth of [[Uranium City, Saskatchewan]], which was home to mine workers and their families. While the last mine closed in the 1980s, the effects of mining operations had already heavily contaminated the northern shores. The large [[Athabasca oil sands|oil sands]] mining nearby is suspected to have added to the current pollution levels in the lake.<ref name=Npr>
{{cite news|url=https://www.npr.org/2013/01/08/168887788/deep-in-canadian-lakes-signs-of-tar-sands-pollution|title=Deep In Canadian Lakes, Signs Of Tar Sands Pollution|date=2013-01-08|archiveurl=https://www.webcitation.org/query?url=http%3A%2F%2Fwww.npr.org%2F2013%2F01%2F08%2F168887788%2Fdeep-in-canadian-lakes-signs-of-tar-sands-pollution&date=2013-08-01|archivedate=2013-08-01|url-status=live|publisher=[[National Public Radio]]|quote=Canadian researchers have used the mud at the bottom of lakes like a time machine to show that tar sands oil production in Alberta, Canada, is polluting remote regional lakes as far as 50 miles from the operations.|author=Elizabeth Southren}}
{{cite news
| url = https://www.npr.org/2013/01/08/168887788/deep-in-canadian-lakes-signs-of-tar-sands-pollution
| title = Deep In Canadian Lakes, Signs Of Tar Sands Pollution
| publisher = [[National Public Radio]]
| author = Elizabeth Southren
| date = 2013-01-08
| archivedate = 2013-08-01
| archiveurl = https://www.webcitation.org/query?url=http%3A%2F%2Fwww.npr.org%2F2013%2F01%2F08%2F168887788%2Fdeep-in-canadian-lakes-signs-of-tar-sands-pollution&date=2013-08-01
| url-status = live
| quote = Canadian researchers have used the mud at the bottom of lakes like a time machine to show that tar sands oil production in Alberta, Canada, is polluting remote regional lakes as far as 50 miles from the operations.
}}
</ref>
 
On October{{nbsp}}31, 2013, one of [[Obed Mountain coal mine spill|Obed Mountain coal mine]]'s pits failed, and from between 600 million to a billion liters of slurry poured into the Plante and Apetowun Creeks.<ref name=vice>{{cite web|url=https://news.vice.com/article/two-years-later-charges-laid-in-massive-alberta-coal-mine-spill|title=Two Years Later, Charges Laid in Massive Alberta Coal Mine Spill|first=Meagan|last=Wohlberg|work=[[Vice News]]|date=October 21, 2015|accessdate=17 February 2016}}</ref> The plume of waste products then joined the Athabasca River, travelling downstream for a month before settling in Lake Athabasca near [[Fort Chipewyan]], over {{convert|500|km|mi|abbr=off}} away.<ref name=vice />
 
The [[Lake Athabasca Sand Dunes]], the largest active sand dunes in the worldদworld north of 58°, are adjacent to the southern shore. The dunes were designated a "Provincial Wilderness Park" in 1992.
 
Lake Athabasca contains 23 species of [[fish]], with a world record [[lake trout]] of {{convert|46.3|kg|lb|abbr=off}} caught from its depths in 1961 by means of a [[gillnet]].<ref>{{cite web |url=http://www.pvisuals.com/fishing/species/laketrout.html |title=Lake Trout |publisher=Perspective Visuals, Inc. |date=March 8, 2006}}</ref>
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