The correct answer C. Pectinoid is the most occurring fossil that is a bivalve. They are a superfamily of marine bivalve mollusks which includes scallops and oysters. Members of this family have a triangular resilium.
By trading and Conquering
It is done so that the soil of farms is not used for only one set of nutrients. It helps in reducing soil erosion and increases soil fertility and crop yield.
"Same question up top"
A. At the divergent plate boundary in the middle of the ocean
B. On the oceanic crust along the edge of the North American Continent
C. At the convergent plate boundary in the middles of the ocean
D. On the continental landforms on either side of the ocean
The answer is A. At the divergent plate boundary in the middle of the ocean (Apex)