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Explanation:
a) A lion"s roar is greater than a birds chirp. ... However the roar of a lion is very loud while the sound of the bird is quite feeble. This is because if the frequency of vibration is higher the sound is shrill and has a higher pitch.
b) In a rainy day, the humidity level in the atmosphere is already high. As a result, it will be quite difficult for the moisture associated with wet clothes to change into vapours.
c) MCB is more sensitive to current than Fuse.
d) The refraction of light at the surface of water makes ponds and swimming pools appear shallower than they really are. ... When light emerges from glass or water into air it speeds up again. If it meets the glass-air boundary at any angle other than 0o it will refract away from the normal
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Explanation:
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