A. Graphite
B. Silicon
C. Charcoal
D. Phosphorous
Submitted by: Muhammad Ashhar khan
Correct Answer: Graphite ✔
Last Updated: October 19, 2018
A. Graphite
B. Silicon
C. Charcoal
D. Phosphorous
Submitted by: Muhammad Ashhar khan
Correct Answer: Graphite ✔
Last Updated: October 19, 2018