<span>The art of joining parts of plants together.</span>
The answer to this question would be frequency.
The pitch of a sound makes is directly related to the frequency of the vibration. For every octave, the number of frequency will be increased 2 times. The frequency is influenced by various things. Changing the length of the instrument is the easiest method to change the frequency.
It enters through the stoma.
Because alcohol doesn't need to be digested