Question

If you have a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.
a. Do you think rust is different from iron? What type of change it is?
b. Can you change rust back into iron by some simple method?
c. Give two other examples of a similar type of change.

please tell the answer quickly I will mark you as BRAINLIST
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Answer 1

A- It is a slow change and different from Iron.

B- Yes a.By rubbing sand paper b.by polishing

C- 1-Ripening of fruits

2-Growth of Plants