Where would you be most likely to find the oldest rocks on earth

Some cratons in Canada and Greenland shelter the oldest continental rocks in the world, about 4 billion years old. Other cratons in South Africa, Australia and Asia have continental rocks that are 3 billion years old. The oldest seafloor is comparatively very young, approximately 280 million years old.

Bedrock along the northeast coast of Hudson Bay, Canada.

Explanation:Canadian bedrock more than 4 billion years old may be the oldest known section of the Earth's early crust.

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

carbon-14

nitrogen

carbon-12