References:

Why do all colours of light appear clear?
https://www.bbc.com/education/guides/zq7thyc/revision/6

https://www.bbc.com/education/guides/zq7thyc/revision/6


Why do our hands quiver and shake when we’re tired?
http://www.anxietycentre.com/anxiety-symptoms/body-tremors.shtml

https://www.nhs.uk/conditions/tremor-or-shaking-hands/


Can different fish species talk to each other?
http://www.sciencestudent.net/can-fish-communicate-each-other/

https://www.seeker.com/fish-talk-to-one-another-1765071701.html

What is the oldest exoplanet known to man?
https://www.space.com/17738-exoplanets.html

https://web.archive.org/web/20131219075138/http://thebookofbeginnings.com/sources/10/PrimevalPlanet.pdf

Did the statue of liberty have any instructions?

https://www.smithsonianmag.com/smart-news/statue-liberty-arrived-350-pieces-180955920/

https://www.nps.gov/stli/learn/historyculture/places_creating_statue.htm

Why do spiders stay in the same place almost 24/7?
http://www.sciencefocus.com/qa/why-do-spiders-sometimes-stay-still-long-time

http://www.discoverwildlife.com/british-wildlife/see-it/understand-spider-behaviour

Where does the phase “for crying out loud” come from?
https://www.phrases.org.uk/meanings/minced-oath.html

https://www.gotquestions.org/Lords-name-vain.html

Why do trees have different looks?
https://www.bgci.org/news-and-events/news/1400/

http://www.bbc.co.uk/news/science-environment-39492977

https://www.forestry.gov.uk/fr/treespecies


Why are our bodies symmetrical?
https://www.livescience.com/4002-symmetry-nature-fundamental-fact-human-bias.html

http://blogs.discovermagazine.com/d-brief/2014/08/12/facial-symmetry-attractive-not-because-indicates-health/#.WwNWNCAh2Uk

Can people grow in or out of allergies?
https://www.everydayhealth.com/year-round-allergies/developing-or-outgrowing-allergies.aspx

https://www.livescience.com/39257-outgrow-allergies-go-away.html

https://www.healthline.com/health/allergies/can-you-outgrow-them#2