Geology's best tool for establishing absolute geologic time is
a. index fossils.
b. radiometric dating.
c. the principle of superposition.
d. the principle of cross-cutting relationships.
b
You might also like to view...
Nuclear Reactions: In the nuclear reaction 
O + 
n ? X + 
He, what is X?
A. 12C B. 13C C. 14C D. 15C E. 17O
Detailed measurements of the disk and central bulge region of our Galaxy suggest our Milky Way is a
A) dwarf galaxy. B) spiral galaxy. C) very flat elliptical galaxy. D) very dusty irregular galaxy. E) quasar.
The uncertainty in the position of a proton is 0.053 nm. What is the uncertainty in its speed?
A) 2.2 m/s B) 0.60 km/s C) 0.98 km/s D) 37. m/s E) 1.2 km/s
The overflow of gasoline from a car's full metal tank on a hot day is evidence that gasoline expands
A) more than metal. B) about the same as metal. C) less than metal. D) none of the above.