This photograph shows chert. How does it form? A.
Chapter , Problem 42MCQ(choose chapter or problem)
Problem 42MCQ
This photograph shows chert. How does it form?
A. evaporation of water in a lake or sea
B. accumulation of microscopic organisms composed of calcium carbonate
C. precipitation from seawater early in Earth's history
D. accumulation of silica-rich organisms or mixing of seawater and groundwater
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