References
10 – Sharks sleep - https://www.flmnh.ufl.edu/fish/discover/sharks/basics/
http://marinelife.about.com/od/fish/f/howdosharkssleep.htm
http://www.elasmo-research.org/education/topics/b_sleep.htm

9 – Earth called earth - http://www.livescience.com/32274-how-did-earth-get-its-name.html
http://www.todayifoundout.com/index.php/2010/09/how-earth-got-its-name/

8 – sea waves - http://ocean.si.edu/ocean-news/currents-waves-and-tides-ocean-motion
http://oceanservice.noaa.gov/facts/wavesinocean.html
http://oceanexplorer.noaa.gov/facts/waves.html

7 – fast food restaurant - http://jpfarrell.blogspot.com.au/2007/11/evolution-of-quick-service-restaurant.html
http://jpfarrell.blogspot.com.au/2007/11/evolution-of-quick-service-restaurant.html
http://science.howstuffworks.com/innovation/edible-innovations/fast-food3.htm

6 – color names - http://www.empiricalzeal.com/2012/06/05/the-crayola-fication-of-the-world-how-we-gave-colors-names-and-it-messed-with-our-brains-part-i/
https://www.quora.com/How-did-the-colors-get-their-names
http://www.livescience.com/19704-colors-names-human-vision.html
http://www.todayifoundout.com/index.php/2014/01/origin-english-names-colors/

5 – party balloons - http://www.slate.com/articles/life/explainer/2011/12/party_balloons_a_history.html
http://www.yeedor.com/insight/a-brief-history-of-balloons-and-why-not-to-have-them-on-your-birthday/

4 – why drink water - http://science.howstuffworks.com/environmental/earth/geophysics/h2o3.htm
https://www.quora.com/Why-does-the-human-body-need-water
http://healthyeating.sfgate.com/need-drink-water-4301.html

3 – fat tastes good - http://gizmodo.com/the-science-behind-why-fat-tastes-so-good-1511695998
https://www.psychologytoday.com/blog/your-brain-food/201201/why-does-fat-taste-so-good
http://recipes.howstuffworks.com/why-does-fat-taste-so-good.htm

2 – cold during sun - http://www.theweatherprediction.com/habyhints/225/
https://www.loc.gov/rr/scitech/mysteries/seasons.html

1 – English accents - https://www.quora.com/Why-do-people-have-different-accents
https://www.telc.net/tr/hakkimizda/guencel/detail/why-do-people-have-different-accents-when-they-speak-english-1.html