Question

• How can we make different sounds with our vocal folds?
.. Why it is that sound cannot travel in vacuum?
.: What is 'amplitude' of a vibration?
• What is the unit in which time period is measured?
1. Name two wind instruments.
6. What is noise pollution?​

Answer 1

Answer:

ɴᴏɪsᴇ ᴘᴏʟʟᴜᴛɪᴏɴ ᴋᴏ ᴋᴜᴜᴍ ᴋʀɴᴇ ᴋᴇ ʟɪʏᴇ ʜᴇᴀᴅ ᴘʜᴏɴᴇs ᴜsᴇ ᴋʀᴇ