At the Mid Atlantic Ridge * A) The oldest rocks are at the center of the ridge B) Sedimentary rocks are the dominate rock type C) The youngest rocks are at the center of the ridge The fossil record on Earth started about * A)1,000,000 years ago B)100,000,000 years ago C)5,000,000,000 years ago D)500,000,000 years ago .

1. At the Mid Atlantic Ridge *
A) The oldest rocks are at the center of the ridge
B) Sedimentary rocks are the dominate rock type
C) The youngest rocks are at the center of the ridge
The fossil record on Earth started about *
A)1,000,000 years ago
B)100,000,000 years ago
C)5,000,000,000 years ago
D)500,000,000 years ago