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Fill in the blanks with the proper words.(a) The propagation of sound does not occur through a ........... .(b) Noise pollution is a .......... issue.(c) The sound which is disagreeable to the ears is called..... .(d) Noise has adverse effects on our .......... . |
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Answer» Fill in the blanks with the proper words. (a) The propagation of sound does not occur through a ........... . (b) Noise pollution is a .......... issue. (c) The sound which is disagreeable to the ears is called..... . (d) Noise has adverse effects on our .......... . |
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