Br is a non-metal. The other answers like Os, Ir, W are not combinations while Sr is a metal. So Br is your answer.
Answer:
D. reducation of cold-related deaths
Explanation:
CO2 had nothing to do with coldness.
- CO2 would increase water pollution, ocean acidification, and logging therefore D. is the only answer that would fit.
Because coefficients numbers make the elements to be stable.
