Answer:
It's in the picture, hope it helps
Many small gestures of what used to be normal kindness instinctual even has diminished. Things like men pulling out chairs or holding open doors there are a few who still practice this act of chivalry but other who think it outdated and unnecessary.
Behavior is the preferred spelling in American English. Behaviour is preferred everywhere else. Other than the spelling, there is no difference between the two words. The spelling distinction extends to all derivatives.
I believe the correct answer is nuclear fusion. The sun's energy is produced by nuclear fusion of hydrogen and helium. With the fusion reaction, large amounts of energy is being produced from the collision of the nuclei. Hope this helps.
