Question

Identify these changes and state whether energy is absorbed or evolved:
(a) Burning of paper
(6) Growth in plants
(c) Making of food by green leaves
(d) Lightning of an electric bulb​

Answer 1

Answer:

a)chemical change(energy is evolved)

B)chemical and physical change(energy is absorbed)

C)chemical change(energy is absorbed)

d) chemical change(energy is evolved)

Answer 2

Answer:

(a)energy is evolved

(B) energy is absorbed

(c) energy is absorbed

(d) energy is evolved.

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