Sound waves are produced by air flow coming from our lungs passing through our throat, more specifically our larynx and moving with two folds of tissue called vocal chords. The sound is made by the vibration of vocal chords, so the more stretched the chords are over the larynx, their frequency of vibration is higher, therefore producing higher-pitched sounds.
Answer:
2
Explanation:
it has a total of 17 valence electrons
The relationship between two versions of a gene
The dense aerosol cloud created caused decreases in the amount of solar radiation that reached the Earths surface.
