| (i) Forest fire |
| (ii) Growth of plants |
| (iii) Low and high tides |
| (iv) Occurrence of a rainbow |
| (v) Earthquakes |
| (vi) Opening of a morning glory flower. |
A) (i), (ii) and (iii)
B) (i), (ii) and (v)
C) (iv), (v) and (vi)
D) (iii) and (vi)
Correct Answer: D
Solution :
Periodic changes are the changes which keep repeating themselves after a regular period of time. So, low and high tides and opening of a morning glory flower are the examples of periodic changes.
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