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参考記事・出典 https://bigthink.com/ https://www.nationalgeographic.com/ https://www.ship-technology.com/ https://nikkankensetsukogyo2.blogspot.com/ https://www.kinenkan-mikasa.or.jp/kids/index.html https://mamor-web.jp/ https://www.europa.uk.com/ http://www.hansgruener.de/index.htm https://www.archives.gov/ https://www.hurriyet.com.tr/ https://www.globalpropertyguide.com/ https://www.nikkei.com/ ▼使用素材 ■映像素材・画像素材 pixabay https://pixabay.com/ja/videos/ pexels https://www.pexels.com/ja-jp/videos/ ACイラスト https://www.ac-illust.com/ Freepik https://jp.freepik.com/ SILHOUETTE DESIGN https://kage-design.com/ ■音源素材 artlist https://artlist.io/ 効果音ラボ https://soundeffect-lab.info/ Song: Jim Yosef & Alex Skrindo - Ruby [NCS Release] Music provided by NoCopyrightSounds Free Download/Stream: http://ncs.io/Ruby Watch: http://youtu.be/Np-Y8ClGgRk #ゆっくり解説 #地理 #地政学