Q35
How old is Earth, It is decided by which of the following processes?
A.
Geologic Time Scale
B.
Radiometric Dating
AnswerC.
Gravity Method
D.
Fossil Dating
Answer: Option B
Solution
Answer: Option B
Solution:
The Earth is 4,54 billion years old. This age has been determined with the radioactive dating technique. The precise decay rate of radioactive elements is used as a clock: the number of daughter products in one rock indicates its age.