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7
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Solution
5 year s ago
#9 is false. Quacks do echo.
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2.
Beautiful
4 year s ago
It just doesn't make a loud sound because it becomes quiet at the end of the quack. Daily dose of Science!
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2
1.
Solution
5 year s ago
#9 is false. Quacks do echo.
Reply
0
2.
Beautiful
4 year s ago
It just doesn't make a loud sound because it becomes quiet at the end of the quack. Daily dose of Science!
Reply
random avatar