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Antarcticais Earth ’s frosty continent . spread over 5.5 million square miles ( 14.2 million straightforward kilometers ) , it ’s bigger than Europe and Australia . It holds about 60 % of Earth ’s total impertinent water , with iceup to 3 miles ( 5 kilometers ) thickin places .
But this was n’t always the casing . During theCretaceous period(145 million to 66 million years ago ) , when dinosaur range Earth , Antarctica was ice - free and was covered in a semitropic rain forest , serving as a land bridge for theseextinct titan to cross Continent .
How much do you know about Antarctica?
Around 34 million years ago , things changed andan ice sheet started growing across the landscape painting . Global temperatures plummeted and the continents change , separating Antarctica from South America and produce a circumpolar stream that isolated it from the rest of the world .
Now , just a tiny fraction of Antarctica is covered with botany — but that ’s commence to commute , as warmer global temperature mellow out the ice , turn the landscape painting green .
But how much do you know about Antarctica ? Take our quiz to find out !
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