10 multiple choice 2 points the oldest rock formation identified on earth is found on the shoreline of…

10 multiple choice 2 points the oldest rock formation identified on earth is found on the shoreline of hudson bay in canada. this rock formed 4.28 billion years ago. which information does a scientist need to most accurately determine the age of a rock? the percentage of each mineral that makes up the rock. the thickness of younger rock layers that cover the rock. the amount of each radioactive element present in the rock. the amount of weathering present on the surface of the rock.

10 multiple choice 2 points the oldest rock formation identified on earth is found on the shoreline of hudson bay in canada. this rock formed 4.28 billion years ago. which information does a scientist need to most accurately determine the age of a rock? the percentage of each mineral that makes up the rock. the thickness of younger rock layers that cover the rock. the amount of each radioactive element present in the rock. the amount of weathering present on the surface of the rock.

Answer

Brief Explanations:

To determine the age of a rock most accurately, scientists use radiometric dating which relies on the amount of radioactive elements present in the rock. The decay rate of radioactive elements is consistent over time and can be used to calculate the age of the rock. The percentage of minerals, thickness of younger rock - layers, and amount of weathering are not as accurate for determining the absolute age of a rock as radiometric dating.

Answer:

The amount of radioactive element present in the rock.