Aloof:
Synonym: detached
Antonym: grounded
Bleak:
Synonym: chilly
Antonym: warm
Cunning:
Synonym: keen
Antonym: ignorant
Elite:
Synonym: exclusive
Antonym: inferior
Emotional:
Synonym: sensitive
Antonym: numb
Frustration:
Synonym: irritation
Antonym: pleasure
Grimly:
Synonym: brutally
Antonym: weakly
Impersonal:
Synonym: abstract
Antonym: compassionate
Ornery:
Synonym: ill-tempered/cranky
Antonym: friendly
Passionate:
Synonym: intense
Antonym: dull
Pity:
Synonym: empathy
Antonym: harshness
Quivering:
Synonym: trembling
Antonym: still
Resigned:
Synonym: satisfied
Antonym: unwilling
Sassy:
Synonym: cheeky
Antonym: incoming
Sophisticated:
Synonym: refined
antonym: unrefined
Answer:
C.)VIBRATION
Explanation:
Noise is unwanted sound. ... Sound is produced by vibrating objects and reaches the listener's ears as waves in the air or other media. When an object vibrates, it causes slight changes in air pressure. These air pressure changes travel as waves through the air and produce sound.
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