सोहन की पतंर् आकाश में उड़ती र्ई I(भियाछााँट कर भेद सभहत भलस्तखए )
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Examples of physical changes are boiling, melting, freezing, and shredding. Many physical changes are reversible, if sufficient energy is supplied. The only way to reverse a chemical change is via another chemical reaction.
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