569Every Day ScienceMedium
The cracking sound heard when dry hair is combed with a hard rubber comb is due to_________?
ANone of the above
BThe rubbing of the comb with the hair
CThe hair barging against the charged comb
DSmall electric sparks
Correct answer
D. Small electric sparks
Explanation
Small electric sparks is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.