Answer: Implement standards on the smoke emissions from factories.
Step-by-step explanation:
The human activities such as liberation of smoke particles through vehicular emission or factory emission can contaminate the quality of the air by adding carbon dioxide, carbon monoxide, sulfur dioxide and other gases to the atmosphere.
The implemented standards on the smoke emission can be a correct approach to reduce health risks. As the smoke components can result in direct respiratory problems such as asthma, bronchitis, and suffocation.