Discussion
What is the difference between Conglomerate and Breccia ?
Answer: A
The difference is that conglomerate is round and breccia is angular.
Both are coarse clastic sedimentary rocks made of gravel-size fragments cemented together. In a conglomerate the fragments are rounded, because they were worn down by long transport in rivers or along beaches. In a breccia the fragments are angular, because they were deposited close to their source, as in scree, fault zones or landslide debris, without being rounded.
Option B reverses the two, and colour, porosity and compactness vary within each rock type, so they are not what distinguishes them.
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