Statistics for geology

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Hint	Answer	% Correct
hardest naturally occurring object	diamond	100%
name of molten rock when it is under the earths surface	magma	100%
highest mountain in the world	everest	96%
rock category formed through melting or compression of other rocks	metamorphic	96%
deepest layer of the earth	inner core	83%
main mineral that comprises sand	quartz	83%
scale used to measure mineral hardness	Mohs	75%
supercontinent that formed in the late paleozoic	pangea	75%
sharpest naturally occurring object	obsidian	71%
most abundant rock type on the earth's surface	sedimentary	71%
tectonic plates moving away from each other	divergent	67%
black mica	biotite	63%
protolith of slate	shale	63%
most explosive volcano type	stratovolcano	33%
the 'father of geology'	james hutton	25%