A) II
B) III
C) IV
D) V
Correct Answer: B
Solution :
Friction plays an important role in life. Friction has disadvantages as well as advantages. One of the disadvantages of friction is the wearing out of shoes when used for a long time. The reason for this is the heat developed by friction between the shoes and the ground surface while walking. The correct answer is B.You need to login to perform this action.
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