Drive the car and see if the mpg is accurate to what the manufacturers say it is. U might have to drive the car for a while but that’s the most accurate way to do it. Because all cars are different. Even if it’s the same model & brand.
Energy from sunlight is being used in an indirect way for walking the dog. Plants photosynthesize in which they absorb energy from sun and convert it into chemical energy, which is stored in organic product formed as a result of photosynthesis. When this organic compound is consumed by us, we use the chemical energy stored in that food to mechanical energy for walking the dog. Hence, the energy to walk the dog comes from sunlight.
that they are not soluble with water
When air is heated up the molecules spread out and move faster, so heat rises because it is less dense than the cooler air around it.
