Final answer:
The risks to consider in this question include exposures exceeding permissible limits, explosion sensitivity and flammability ranges, and oxygen deficiency. These risks are relevant in the field of Chemistry.
Step-by-step explanation:
The subject of this question is Chemistry. The question is referring to the risks associated with certain substances or chemicals, particularly in terms of exposure limits, explosion sensitivity and flammability, and oxygen deficiency.
Learn more about Risks associated with certain substances or chemicals