A. natural uranium
B. molten lead
C. any form of uranium
D. thorium
E. plutonium
Correct Answer: molten lead ✔
Last Updated: January 24, 2019
A. natural uranium
B. molten lead
C. any form of uranium
D. thorium
E. plutonium
Correct Answer: molten lead ✔
Last Updated: January 24, 2019