Question

Painting the grill, baking of cake, rolling of roti, blinking of eyelids, bending a paper clip, eruption of valcano, melting of ghee, burning of matchstick, occurrence of day and night whether those are PC orCC

Answer 1

chemical changes

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

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