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An Earth-moving Quiz.
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Question of
A billion years ago, were Earth days noticeably longer or shorter than today?
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Longer
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Shorter
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Question of
Obsidian and basalt are examples of what form of rock?
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Sedimentary
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Metamorphic
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Igneous
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Question of
Soviet scientists hold the record for drilling deepest into Earth’s crust. What depth did they achieve before pressure crushed their machinery?
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12km
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48 km
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95 km
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Question of
Where in Earth is the asthenosphere located?
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Continental Crust
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Upper Mantle
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Outer Core
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Question of
Though hard to prove for certain, most geologists currently believe the Earth’s core is comprised mainly of iron and which metal?
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Nickel
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Tin
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Zinc
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Question of
And what metal is extracted from the ore, galena?
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Gold
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Lead
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Zinc
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Question of
Where is the magnetic North Pole?
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Canada
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Greenland
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It is constantly moving
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Question of
Which of these was a supercontinent, as opposed to a primordial continent?
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Gondwana
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Laurasia
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Pangea
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Question of
What is the deepest cave in the World, descending to 2,212 metres?
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Lamprechtsofen, Austria
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Sarma, Georgia
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Veryovkina. Georgia
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Question of
At what distance per annum are the European and American continents drifting apart?
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2.5 Millimetres
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2.5 Centimetres
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2.5 Metres
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