Question

Identify a physical change among the following .
a)respiration
b)digestion of food
c)burning of wax
d)glowing of electric bulb

Answer 1

Answer:

1. Respiration.
2. Glowing of electric bulb.

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Answer 2

Answer:

c)burning of wax

Explanation:

c) burning of wax is physical change because after burning of wax we can correct the wax together and again set it in the position in which it was.