If the temperature is increased the particles gain more kinetic energy or vibrate faster. This means that they move faster and take more space.
Gravity, acceleration, kinetic energy, the atmosphere
Answer:
F - The skin is the body's first physical barrier, hairs in the nose filter air as it enters the body, pores in the skin release toxins and pathogens
This can be seen as a trick question because heat engines can typically never be 100 percent efficient. This is due to the presence of inefficiencies such as friction and heat loss to the environment. Even the best heat engines can only go up to around 50% efficiency.