Answers

2016-03-20T10:36:43+05:30
The sound may have encountered a mountain nearby.
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The Brainliest Answer!
2016-03-20T11:32:07+05:30
The obstacle should be big and far enough to produce an echo. One such possibility is the presence of a mountain or a hill, or maybe a huge building.


Hope it helps :)


Good day!
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