1.

Give two example for the followingA. fast changesB. Desirable changesC. non- periodic changesD. Physical changes

Answer» (a) Burning of a match stick glowing of an electric bulb.
(b) formation of curd from milk , formation of manure.
(C ) Sneezing rusting of iron.
(D) Melting of ice, evaporation of water.
(e ) Germination of seeds , cooking of food .


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