The two keys to determining the absolute age of a rock are
A) measuring the abundance of parent isotope and measuring the abundance of daughter isotope.
B) knowing the half-life and measuring the abundance of parent and daughter isotopes.
C) knowing the composition and the geologic period the rock is from.
D) identifying all the minerals in the rock and knowing the half-life of each mineral.
Answer: B
You might also like to view...
____________________ are sometimes used to fasten unstable bedrock to stable strata
Fill in the blank(s) with correct word
What statement best describes the concept of mutation?
A)It only occurs through external influences on an organism. B)It only occurs in sex cells AND is always inheritable. C)It only occurs in the weakest organisms. D)It is random in terms of fitness of organisms AND cannot be inheritable. E)It is inheritable when occurring in sex cells AND is random in terms of fitness of organisms.
Which site on the island is the most dangerous?
A. the area of the mudflow deposits B. the area of the landslide blocks C. the location of Rock 1 D. the location of Rock 3 E. the location of Rock 2
Activation of the sympathetic nervous system causes all of the following EXCEPT...
What will be an ideal response?