geologyThis term represents a branch of science that deals with the solid earth, including the history and processes that have shaped it.
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The science that deals with the earth's physical structure and substance, its history, and the processes that act on it."He studied geology to understand more about Earth's composition."
volcanoThis term denotes a mountainous vent in the Earth's surface which can spew molten lava, ash, or hot gases.
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A vent in the earth's surface through which molten rock, gas, and ashes are ejected."The volcano erupted suddenly, causing chaos in the surrounding area."
expeditionThis term means a journey undertaken with a specific purpose, such as exploration or scientific research.
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A journey or excursion undertaken for a specific purpose, especially that of exploration or research."They prepared for a lengthy scientific expedition to the remote arctic region."
subterraneanThis term refers to something present or occurring beneath the earth's surface.
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Existing, occurring, or done under the earth's surface."There's a subterranean river flowing beneath the city."
fossilThis term denotes the remains or impressions of a prehistoric plant or animal embedded in rock and preserved.
Definitions:
The remains or impression of a prehistoric plant or animal embedded in rock and preserved in petrified form."She loved studying fossils, especially the ones that had intricate details preserved."