What does the signal word Warning mean?

What does the signal word Warning mean?

• A. Relatively low toxicity
• B. Severe toxicity
• C. Moderate toxicity
• D. Unknown toxicity

Answer: (C)

Signal words on hazard labels tell you how severe the hazard is. When you see “Warning,” it means there is a health hazard, but the level of danger is moderate—not the highest level of severity. It indicates that exposure could cause adverse effects, so you still need to take precautions (like using protective gear and ensuring proper ventilation), but it’s not as immediately severe as what would be flagged with a stronger alert. It's not an indication of unknown toxicity or very low toxicity—the moderate level is the reason “Warning” is used.

Signal words on hazard labels tell you how severe the hazard is. When you see “Warning,” it means there is a health hazard, but the level of danger is moderate—not the highest level of severity. It indicates that exposure could cause adverse effects, so you still need to take precautions (like using protective gear and ensuring proper ventilation), but it’s not as immediately severe as what would be flagged with a stronger alert. It's not an indication of unknown toxicity or very low toxicity—the moderate level is the reason “Warning” is used.