Question

correct answer will be marrk as braineast answer .

Answer 1

it is reversible change . We can say it is a physical change . We can again make a candle from the wax formed by burning.

Answer 2

if we lighted a candle then we also blew the candle and also again we lighted the candle when we burn a wax it melts and become a solid and we also make as liquid by burning so these are reversible