Generally in science and the natural world, when you break big things down into more pieces you increase disorder. In the natural universe the second law of thermodynamics tells us that disorder is increased in a closed system. I would say c. fission releases more energy than fusion. because bringing things together requires work and consumes energy. breaking things apart releases energy.
I'm not sure what type of fuel you're talking about. If you mean fossil fuel then kerosene has the highest density of all of the things you listed.
Gamma rays consist of pure energy. Beta particles consist of one electron that is released at high speeds from an unstable nucleus and an alpha particle is a helium nucleus.
We know that Gamma rays consist of pure energy because, during Gamma decay, the atomic and mass numbers remain unchanged. Therefore, only energy is emitted.
Gamma rays are weakly ionising, however, they are strongly penetrating and thick concrete or a few centimetres of aluminium is needed to stop them.
Your answer would be D friction.
I believe the type of compound fe3n2 is ionic.
