Answer:2. The number of miles driven and the amount of gas used.
Explanation:
Compression is a type of force, like when you crush a soda can, your compressing it.
Answer:
The infrared photon does not have greater energy as compare to visible rays so infrared rays pass through but due to greater energy than the gap visible rays could not hence silicon is transparent to infrared rays but silicon is opaque to visible rays .
All atoms of the same element must have the same number if protons, however the number of neutrons can vary, giving different isotopes of the element.
I'm not quite sure what you were looking for but I hope that this helps.