Question

1. Select the correct option:
1. During physical and chemical changes
(a) energy is always absorbed
(b) energy is always released
(c) no energy is absorbed or released (d) energy is either absorbed or released
2. When a change occurs:
(a) energy changes do not occur
(b) energy is always given out
(C) energy is always absorbed
(d) energy is either absorbed or given out
3. Which of the following factors help water to evaporate faster?
(a) Low temperature
(b) Humid weather
(c) Large surface area
(d) High atmospheric pressure
4. During which of the following changes are new substances formed?
(a) Melting
(b) Sublimation (c) Dissolution (d) Burning
5. In which of the following processes is light absorbed?
(a) Sublimation (b) Burning ) Photosynthesis (d) Rusting
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Answer 1

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Answer 2

Answer:

1-a

2-c

3-b

4-b

5-c

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