Question

Fossils in _______ layers of rock are generally estimated to be _______ than fossils found in the upper layers. older, younger newer, younger older, older newer, older

Answer 1

fossils in older layers of rock are generally estimated to be OLDER than fossils found in the upper layers.

Step-by-step explanation:

Answer 2

fossils in LOWER layers of rock are generally estimated to be OLDER than fossils found in the upper layers.