Glossary beginning with B
- Badlands
- Bajada
- Ballistic
- Bank
- Barremian
- Basalt
- Basin and Range
- Batholith
- Beaver
- Belay
- Benthic
- Berm
- Berriasian
- Bighorn Sheep
- Biogeochemical
- Bioluminescence
- Biome
- Biosphere
- Biostratigraphy
- Biota
- Biotic
- Biotic Community
- Bison
- Bivalve
- Black Bear
- Black Footed Ferret
- Bobcat
- Bog
- Bony Fishes Bank
- Bouldering
- Braided stream
- Breccia
- Butte
- Buttress
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