4. Which of these is an irreversible change?
(a) Burning of a matchstick
(c) Lighting a bulb
(b) Inflating tyres
(d) Inflating a balloon
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4. Which of these is an irreversible change?
(a) Burning of a matchstick
(c) Lighting a bulb
(b) Inflating tyres
(d) Inflating a balloon
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Answer:
(a) Burning of a matchstick is an irreversible change.
Answer:
Write answers a.burning a matchstick
Explanation:
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