Precambrian metamorphic rocks are exposed at the surface
A) on Mars and Venus but not on Earth.
B) at places in continental interiors (called platforms).
C) at places in continental interiors (called shields).
D) at the bottom of the deep sea.

Question

Quizplus · Accepted Answer

Precambrian metamorphic rocks are typically exposed at the surface in continental interiors, which are called shields. Continental shields contain some of the oldest rocks on Earth and are exposed at the surface due to uplift and erosion over geologic time.

Precambrian Metamorphic Rocks Are Exposed at the Surface