Please choose the correct answer to the question: Rich beds of marine fossils have been found in Florida. By dating these fossils, scientists can best determine

Answer1: when Florida collided with the North American continent. Answer2: the date when organisms moved onto dry land. Answer3: the period during which Florida was covered in water. Answer4: when the atmosphere of Earth was more humid than it is today.

Answer format: answer1/answer2/answer3/answer4
Answer: answer3