Trivia
HardWhat Is Chalk Made Up Of?
Answer: Plankton Fossils
Chalk is just some soft rock that rubs off easily on other rocks like slate, right? Nothing interesting to see, that is unless you break out the electron microscope and delve into the microtopology and history of it.
Peer close enough at a hunk of chalk and you’ll make an interesting discovery. Chalk is composed of millions of tiny, soft calcite fragments (calcium carbonate) all crushed together under pressure. These fragments are minute calcite plates shed by a type of plankton, coccolithophores, millions of years ago.
In areas of the ocean rich with these little organisms, trillions upon trillions of little shed plates would accumulate like snow on the bottom of the ocean and then, under the enormous pressure of the water, would become fused together. Movement of the tectonic plates slowly pushed these enormous deposits of chalk onto land where, eons after their creation, humans happily mine them.
Trivia
EasySome Plants Use Chemical Signals To Call What To Their Defense?
Trivia
HardThe Bulk Of The World’s Citric Acid Supply Is Created By?
Trivia
HardVideo Games Frequently Use Which Of These Techniques To Create The Illusion Of 3D Space?
Trivia
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EasyWhat Animal Is, Relative To Its Size, The Fastest Runner On Earth?
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EasyThe First Canned Dog Food In America Was Created To Dispose Of Excess?
Trivia
HardPETA Launched A Campaign Against Which Video Game Franchise?
Trivia
EasyIn The Early 1980s, The U.S. Gaming Industry Lobbied For?
Trivia
EasyCoffee Was Originally Decaffeinated Using What Toxic Chemical?