the oldest rock formation identified in earth is found on the shoreline of hudson bay in canada. this rock…

the oldest rock formation identified in 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 more accurately determine the age of a rock?\na) the percentage of each mineral that makes up the rock\nb) the thickness of younger rock layers that cover the rock\nc) the amount of each radioactive element present in the rock\nd) the amount of weathering present on the surface of the rock

the oldest rock formation identified in 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 more accurately determine the age of a rock?\na) the percentage of each mineral that makes up the rock\nb) the thickness of younger rock layers that cover the rock\nc) the amount of each radioactive element present in the rock\nd) the amount of weathering present on the surface of the rock

Answer

Brief Explanations:

Para determinar la edad de una roca de manera más precisa, los científicos usan la datación radiométrica. Esta técnica se basa en la cantidad de elementos radiactivos presentes en la roca. La desintegración de estos elementos radiactivos ocurre a una tasa constante, lo que permite calcular la edad de la roca.

Answer:

C. la cantidad de cada elemento radiactivo presente en la roca