Which pictogram warns that a substance is acutely toxic and can be fatal?

Answer and explanation

Correct answer: C. A skull and crossbones

  1. Step 1: A skull and crossbones means acute toxicity, which can be fatal at low exposure. Step 2. The exclamation mark is for less severe harm. Answer: A skull and crossbones. Why not the others: The exclamation mark, flame and gas cylinder are other warnings.

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