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Outofedenwalk.nationalgeographic.com/2013/02/08/gona-first-kitchen; scienceblogs.com/purepedantry/2007/06/25/did-
cooking-allow-for-the-incr. 394: Exercise 4. Source: news.nationalgeographic.com/news/2012/10/121026-human-cooking-
evolution-raw-food-health-science. 401: Exercise 12. Source: http://video.nationalgeographic.com/video/solar-cooking.
402: Exercise 13. Source: http://news.nationalgeographic.com/news/2013/08/130823-prehistoric-hunter-gatherers-garlic-
mustard-spices. 403: Exercise 1. Source: http://www.theglobeandmail.com/life/food-and-wine/food-trends/the-5-senses-
of-flavour-how-colour-and-sound-can-make-your-dinner-taste-better/article9957597, 410: Exercise 11: http://angelsmith.
net/inbound-marketing/groundbreaking-survey-reveals-how-diners-choose-restaurants. 426: Exercise 1. Source: www.
nationalgeographic.com/explorers/bios/brendan-mullan; science.psu.edu/news-and-events/Brendan-mullan-selected-as-a-
2013-national-geographic-emerging-explorer. 436: Exercise 1. Sources: www.ted.com/prize/sole_toolkit#intro; newswatch.
nationalgeographic/tag/sugata-mitra; huffingtonpost.com/sugata-mitra/2013-ted-prize_b_276598.html. 440: Exercise 6.
Source: http://www. forbes.com/sites/danschawbel/2013/05/30/josh-kaufman-it-takes-20-hours-not-10000-hours-to-learn-
a-skill/ 447: Exercise 1. Source: Nationalgeographic.com/explorers/projects/bioblitz. 449: Exercise 5. Sources: http://www.
nomadicexpeditions.com/trip-finder/golden-eagle-festival; http://www.geoex.com/trips/mongolia-golden-eagle-festival;
http://discover-bayanolgii.com/golden-eagle-festival.
Definitions for glossed words: Sources: The Newbury House Dictionary plus Grammar Reference, Fifth Edition, National Geographic
Learning/Cengage Learning, 2014; Collins Cobuild Illuminated Basic Dictionary of American English, Cengage Learning 2010, Collings
Cobuild/Harper Collins Publishers, First Edition, 2010; Collins Cobuild Schoo! Dictionary of American English, Cengage Learning
2009, Collins Cobuild/Harper Collins Publishers, 2008; Collins Cobuild Advanced Learner's Dictionary, 5" Edition, Harper Collins
Publishers, 2006.

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