Geologists Think That Earth Is How Old

Q29: The Paleozoic era ended with an event

Q30: Which occurrence is associated with the demise

Q31: We live in the period called the<br>A)

Q32: The smallest units of geologic time are

Q33: Eras are divided first into<br>A) epochs.<br>B) millennia.<br>C)

Q35: A fossil imprint made by the movement

Q36: The oldest evidence of life on Earth

Q37: Sedimentary layer A is found above sedimentary

Q38: Reasonable values for the absolute ages of

Q39: Eons are subdivided first into _.