Identify which fossil ABC or D is the best index fossil use one piece of evidence from the graph to support your answer

Which property of fossils allow scientists to determine the relative rock ages..

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?