Each continent contains large "core areas" of Precambrian rocks referred to as _________.
A)plates
B)rifts
C)plateaus
D)shields
E)none of the above

Question

Quizplus · Accepted Answer

Precambrian rocks are some of the oldest rocks on Earth, and each continent has large areas of them known as shields. These shields are composed of igneous and metamorphic rocks, and have been stable for billions of years. They also often contain valuable mineral deposits. Choices A, B, and C do not accurately describe the Precambrian rocks found on continents.

Each Continent Contains Large "Core Areas" of Precambrian Rocks Referred