Class 6 th Science -13.Sound - Online Test
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Your Name *
Noise pollution is a ............  issue. *
2 points
The wave of vibrations cause a sound wave. *
2 points
Sound can be heard even if the vibrations stop *
2 points
The concentration decreases when there is noise pollution. *
2 points
The loud sound is harsh to the ................. *
2 points
Noise has adverse effects on our ------- *
2 points
The transmission of sound is fastest in air. than water. *
2 points
The sound which is disagreeable to the ears is called ---------. *
2 points
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