The true statement is - B. The rock cycle is powered by the movement of tectonic plates.
Almost all rocks on our planet came to existence because of the tectonic activity. The movement of the tectonic plates is enabling the magma from the mantle layer to come to the surface, cool off, and create new layers of rocks. On the other hand, the same process, where there's subdustion zones, is moving the existing rocks down into the mantle layer where they are ''recycled'' in way, and this process is continuing to happen all the time.
Answer:
Where the pacific and Atlantic oceans each meets land.
Explanation:
A margin or boundary is the edge of a plate. in this case, a continental margin is the edge of the continent, where it meets with the oceanic plate.
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.