Question

Which of the following did not cause the reduction in sulfur dioxide emissions from Sudbury's smelters?

A) improving emission-control technology
B) passing regulations requiring reductions in sulfur dioxide emissions
C) permanently closing the nickel mines
D) building the Inco Superstack

Answer 1

Answer: C) permanently closing the nickel mines

Step-by-step explanation:

I just took the test

Answer 2

Hi. :)

I think the answer is B. Passing regulations requiring reductions in sulfur dioxide emissions.