Geography • Physical GeographyEasy
Which of the following sedimentary rocks is formed through biochemical or chemical precipitation of calcium carbonate?
A. Sandstone
B. Shale
C. Limestone✓ Correct Answer
D. Conglomerate
💡 Solution & Explanation
Limestone is a sedimentary rock formed primarily through the chemical or biochemical precipitation of calcium carbonate from marine waters or accumulation of skeletal fragments of marine organisms. Other selections such as sandstone and shale are clastic sedimentary rocks formed from quartz grains and clay minerals respectively, rather than chemical precipitates.
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