Pick the odd one out. Give reason for the same. [1 MARK] nitrogen, oxygen, carbon dioxide.
Pick the odd one out giving reason
(a) Eardrum, oval window, multiple refraction, auditory nerves
(b) Sound, water, vacuum, Steel, air
(c) Amplitude of vibration, quantity of vibrating air, frequency, decibel
(d) Hearing loss, high blood pressure, physical pain, noise