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Image 1 in answers is from Wikimedia Commons: https://commons.wikimedia.org/wiki/File:David_Torres_Costales_Chimboraz… \n\n
Attribution: https://commons.wikimedia.org/wiki/File:David_Torres_Costales_Chimboraz…
License: Creative Commons Attribution-Share Alike 4.0 International
Image 2 in answers is from Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Mount-Everest.jpg
Image 3 in answers is from Wikimedia Commons: https://commons.wikimedia.org/wiki/File:FujiSunriseKawaguchiko2025WP.jpg
Attribution: Pedro Szekely at https://www.flickr.com/photos/pedrosz/
License: Public Domain
Image 4 in answers is from Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Mount_Kilimanjaro.jpg
Attribution: Muhammad Mahdi Karim
License: GNU Free Documentation License v 1.2
Image in Expanation is from Wikemedia Commons: https://commons.wikimedia.org/wiki/File:Toit_du_monde.jpg
Attributed to: JP Vets
License: Creative Commons Attribution-Share Alike 4.0 International