Fact 1: Vinegar can cause harm to the eyes. Fact 2: Vinegar is a weak acid (3.5 pH). Given the two facts above, what can cause harm to eyes?
Pick your answer from: 1. Water; 2. Alcohol; 3. Eye drops; 4. Saline; 5. mildew; 6. mold; 7. coal; 8. Acids;
Answer:
8.