Which unit of geologic time began 65.5 million years ago and continues to the present?
A.Cenozoic era
B.Mesozoic era
C.Permian period
D.Precambrian time
1 answer
A. Cenozoic era
A.Cenozoic era
B.Mesozoic era
C.Permian period
D.Precambrian time
1 answer