If a geologist discovered coal in a modern-day cold, snowy location, he or she could conclude that ________.
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The lithosphere lies directly above the ________.
The lithosphere lies directly above the ________.
The circumference of Earth is most nearly ________.
The circumference of Earth is most nearly ________.
Plutons and batholiths are ________.
Plutons and batholiths are ________.
Broadly, metamorphism involves ________.
Broadly, metamorphism involves ________.
As a rule, groundwater always flows from areas of ________.
As a rule, groundwater always flows from areas of ________.
Of the three primary forms of subaerial volcanoes, ________…
Of the three primary forms of subaerial volcanoes, ________ are typically the largest in area.
The silica tetrahedron that forms the backbone of all the si…
The silica tetrahedron that forms the backbone of all the silicate minerals is composed of silicon and what other element?
The theory of plate tectonics ________.
The theory of plate tectonics ________.
It is unusual for ________ to carry grains larger than sand.
It is unusual for ________ to carry grains larger than sand.