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Match the column I with column II and select the correct option from the given codes.

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A – P, B – S, C – Q, D - R

A – R, B – P, C – S, D – Q

A – S, B – P, C – S, D – Q

A – Q, B – R, C – S, D – P

answer is B.

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Detailed Solution

i) Blowing of balloon is a fast change, this change occurs in a short period of time.

ii) Periodic change: Occurrence of day and night change happens in a regular intervals of time.

iii) Reversible change: Melting of ice.

iv) Spoiling of food is an undesirable change. The changes which are not desire to change is called as undesirable change. The changes which are harmful to humans also are undesirable changes.

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