Subject :NSO Class : Class 6
Consider the following phenomena :
(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.
Which of the above phenomena can be classified as periodic changes?
A (i), (ii) and (iii)
B (i), (ii) and (v)
C (iv), (v) and (vi)
D (iii) and (vi)
(ii) also.