Single Answer MCQ
Q-00004459
Why do metals corrode over time?
1
They become heavier
2
Exposure to air and moisture
3
They gain electrons
4
They're enhanced by sunlight
Answer and Solution
Answer
B. Exposure to air and moisture
Solution:
Metals corrode primarily due to exposure to air and moisture, leading to oxidation. The other options do not accurately reflect the reason for corrosion.
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