The canadian shield, a vast expanse of ancient rock, is centered around which area? a. the pacific coast of canada b. the banks of the st. lawrence river c. the hudson bay d. the appalachian mountains

C

The Hudson Bay

Explanation:

The Canadian Shield is also called the Laurentian Plateau is an area that is covered with Metamorphic rocks and exposed Igneous rocks that were formed as a results of the area's long volcanic history.

The Canadian Shield is horseshoe shaped and encircles the Hudson Bay. It is often regarded as one of the oldest and largest Shield on Earth.

which elements do geologists measure to determine the age of an organism’s remains? check all that apply.

carbon-14

nitrogen

carbon-12