A. Carbon dioxide
B. Lead
C. Sulpher Dioxide
D. Mercury
Submitted by: WIQAR AHMAD
Correct Answer: Lead ✔
Last Updated: April 09, 2018
A. Carbon dioxide
B. Lead
C. Sulpher Dioxide
D. Mercury
Submitted by: WIQAR AHMAD
Correct Answer: Lead ✔
Last Updated: April 09, 2018