define the term Echo.
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Explanation:
An echo is a repetition or imitation of sound. When sound waves hit a hard surface they might reflect, making the sound bounce and repeat
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ᴀɴ ᴇᴄʜᴏ ɪs ᴀ sᴏᴜɴᴅ ᴡʜɪᴄʜ ɪs ᴄᴀᴜsᴇᴅ ʙʏ ᴀ ɴᴏɪsᴇ ʙᴇɪɴɢ ʀᴇғʟᴇᴄᴛᴇᴅ ᴏғғ ᴀ sᴜʀғᴀᴄᴇ sᴜᴄʜ ᴀs ᴀ ᴡᴀʟʟ. ... ɪғ ʏᴏᴜ ᴇᴄʜᴏ sᴏᴍᴇᴏɴᴇ's ᴡᴏʀᴅs, ʏᴏᴜ ʀᴇᴘᴇᴀᴛ ᴛʜᴇᴍ ᴏʀ ᴇxᴘʀᴇss ᴀɢʀᴇᴇᴍᴇɴᴛ ᴡɪᴛʜ ᴛʜᴇɪʀ ᴀᴛᴛɪᴛᴜᴅᴇ ᴏʀ ᴏᴘɪɴɪᴏɴ.
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