Question

describe two changes that are harmful? explain why you consider them harmful? how can you prevent them?​

Answer 1

Answer:

Two changes which are harmful are: 1) Rusting of iron - it can cause damage to ships - can be prevented by galvanizing. The two chemical changes which are harmful to us are given below: Rusting on metal objects as it deteriorates the metal surface and decreases the efficiency of it.

Explanation:

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Answer 2

two changes which are harmful R1 processing of iron it can cause damage to shapes can be prevented by galvanizing the two chemical changes which are harmful to us are given below frosting on metal objects as if it really is the metal surface and decreases the efficiency of it

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