The Principle of _____ Allows Rock Layers in Different Places

Q47: _ dating uses the effect of neutron

Q48: An index fossil is a fossil from

Q49: The principle of superposition states that within

Q50: Carbon-14 is created in the atmosphere by

Q51: Geologists use fossils in sedimentary rocks to

Q53: In a(n) _ the erosional contact represents

Q54: The _ of a radioactive material is

Q55: The _ ended with the greatest mass

Q56: The carbon-14 isotope disintegrates radioactively with a

Q57: The truncation of bedding where sedimentary rock