Question

what do the united states and other countries use to reduce air pollution? voluntary actions by industries laws mandating lower emissions promoting burning coal consumer choices

Explanation:

To reduce air pollution, countries like the US commonly use laws that mandate lower emissions. Voluntary actions by industries may not be consistent or sufficient. Promoting coal burning increases pollution, and consumer choices alone aren't a primary method for large - scale air pollution reduction. Laws can set standards and enforce emission limits across industries and regions.

Answer:

B. laws mandating lower emissions