One cause of heat in a car engine is caused by friction between parts. Which of these reduces the amount of heat produced by friction?
A B C D
fan oil gasoline battery
Question: One cause of heat in a car engine is caused by friction between parts. Which of these reduces the amount of heat produced by friction?
(A) fan
(B) oil
(C) gasoline
(D) battery

Answer: (B) oil
Answer: (D) battery
Question: One cause of heat in a car engine is caused by friction between parts. Which of these reduces the amount of heat produced by friction?
(A) fan
(B) oil
(C) gasoline
(D) battery
Answer: (B) oil