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Taxonomy
Term
Geology and Oceanography
Geology and Oceanography
Pliocene epoch
plutonic
Porphyry (Greek scholar)
pothole
Precambrian era
Project Mohole
pumice
quartzite
Quaternary period
range
Recharge zones
Reef
Reflectance
Rejuvenation
rhyolite
Richter scale
rift valley
river
rock
rock glacier
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Research Categories
Earth and Environment
History
Literature and the Arts
Medicine
People
Philosophy and Religion
Places
Plants and Animals
Science and Technology
Social Sciences and the Law
Sports and Everyday Life
Additional References
Articles
Daily
