It’s D. This is because having oil changes often, makes the care for your car better. I hope this helps.
Answer:
2.5 is the required details
B because thermal has to do with temperature and it’s the amount of kinetic and potential energy in and object
Answer:
No
Explanation:
Heat engines are used for converting the heat into mechanical energy which is used for doing mechanical work.
The efficiency of heat engine is the fraction of mechanical energy to the thermal energy. The efficiency can not be 100% as some of the energy always loss due to friction and motion of the body parts of the heat engine.