Q: Answer the 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: oil

Q: Answer the question

A calculation based on the chemical energy of gasoline shows that a car should be able to go 100 miles on a gallon of fuel. When the car was driven on a test track, the car only went 25 miles on a gallon of fuel. What accounts for most of the difference?

A: the waste heat from the combustion of fuel in the engine

Q: Answer the question

Gregor Mendel cross-pollinated red and white snapdragon flowers. What information indicates that incomplete dominance was achieved?

A:
The offspring were pink.