_____ reefs were dominated by crinoids, blastoids, lacy bryozoans, brachiopods, and calcareous algae
A)Carboniferous
B)Cambrian
C)Permian
D)Devonian
E)Ordovician
A
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A limestone that is metamorphosed becomes marble. Indicate whether the statement is true or false
During late afternoon/early evening in urban areas,
A) interior building temperature always exceeds exterior temperature. B) heat stored in building surfaces is released into the building interiors. C) heat stored in building surfaces is released into the air. D) exterior building temperature always exceeds interior temperature.
The smallest temperature increases due to global warming are expected in the middle latitudes
Indicate whether the statement is true or false
This type of geologic resource provides the power that drives the modern world.
A. petroleum B. metallic C. geothermal D. energy E. nonmetallic