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Hair is made from the same material that makes up fingernails, birds feathers and reptilian scales? It's called keratin.
The time the tip of your hair reaches your shoulders, it's been growing for three or more years? Hair that is level to your waist is at least five years old at the tips.
Each of us has 100,000 to 150,000 hair follicles on our heads.
A Rainbow is light refracted through millions of droplets of water
Rainbows just might be powerful enough to make a he into a she.
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It's quite normal to sneeze in twos or threes.
Sunlight causes many people to sneeze.
We sneeze to give our noses a reboot.
Your sneezes travel up to 100 miles per hour.
Tree roots do not grow very deep. Most tree roots are in the top 12 inches of soil.
One large tree can provide a day's supply of oxygen for up to four people.
A tree can absorb as much as 48 pounds of carbon dioxide per year and can sequester 1 ton of carbon dioxide by the time it reaches 40 years old.
There are over 23,000 different kinds of trees in the world.
Oranges takes 50 glasses of water to grow enough oranges to make one glass of orange juice.
Canaries were originally a mottled greeny-brown, but 400 years of crossbreeding by humans produced their yellow colour. A diet of red peppers turns them orange.
Alexander the Great washed his hair in saffron to keep it a lovely shiny orange colour. During his time saffron was as rare as diamonds and more expensive than gold.
Orange was first used as the name for a colour in 1542.
Yawn increases empathy and social awareness.
Yawn increases memory recall.
India's highest score in a World T20 match is 218/4 against England.
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