Question

What country's shield is a large area of exposed precambrian igenous and metamorphic rocks that form the ancient geological core of the NA continent, and has the oldest rocks on Eart, and is mineral rich with nickel, gold, silver, and copper deposits, and diamonds?

Answer 1

The Canadian Shield in Canada is a large area of exposed Precambrian rocks that form the ancient core of North America and is rich in minerals and diamonds.

Step-by-step explanation:

The country with a shield that is a large area of exposed Precambrian igneous and metamorphic rocks forming the ancient geological core of the North American continent, known for having the oldest rocks on Earth, mineral-rich deposits, and diamonds is Canada. This ancient geological core is known as the Canadian Shield. The Canadian Shield stretches over much of central Canada and includes some of the oldest rocks on the planet, such as the Acasta Gneiss. It is also immensely rich in minerals including nickel, gold, silver, and copper, as well as containing valuable diamond deposits.