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
HardThe White Elephant Gift Exchange Tradition Owes Its Name To?
Trivia
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EasyThe Largest Gold Statue In The World Is A Statue Of What?
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EasyWhich Snack Food’s Shape Was Modeled Using Super Computers?
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HardThe Most Accurate Way To Determine The Age Of Bears Is To?
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HardThe Legal Concept Of “Ad Coelum” Gave People Ownership Of?
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HardWhat Was The First .com Domain Registered?
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HardWhich Sport No Longer Includes The Component It Was Literally Named After?