Multiple Choice
Refer to the graph showing the decay of a radioactive substance. 
The half-life of this substance is _______ years.
A) 50,000
B) 70,000
C) 100,000
D) 140,000
E) 300,000
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q203: The preserved remains of ancient organisms, known
Q204: What would you not expect to see
Q205: The end of the _ was marked
Q206: Which statement about stratigraphy is false?<br>A) Fossils
Q207: The ratio of carbon-14 (<sup>14</sup>C) to its
Q209: During the Cenozoic, _ experienced major radiations.<br>A)
Q210: The world's oldest recorded living tree is
Q211: Refer to the figure. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5650/.jpg" alt="Refer
Q212: A layer of rocks is known as<br>A)
Q213: In 2006, paleontologists announced that fossils of