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Why is corrosion of iron called a serious problem?
AMining is costly
BMelting is hard
CMoney is spent
DMetal is scarce
Answer & Solution
Correct answer: C. Money is spent
1. Damaged iron has to be replaced.
2. This happens every year on a large scale.
3. An enormous amount of money is spent.
_Source: NCERT Class 10 Science, Ch 1 'Chemical Reactions and Equations'_
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