That depends on what element(s) are being fused.
After this the reactions get very complex, sometimes including catalytic fusion cycles of several elements. The end result of fusion is a nickel/iron alloy.
helium-4
Hydrogen is the element that is most likely to undergo nuclear fusion.
both
The Sun gets its energy from nuclear fusion.The Sun gets its energy from nuclear fusion.The Sun gets its energy from nuclear fusion.The Sun gets its energy from nuclear fusion.
No, but as hydrogen is the most plentiful element in both the earth's oceans and the universe there is more of it than we are likely ever to consume, assuming we can make fusion reactors.
I do not understand what you are asking because of a definition problem. A nuclear bomb can be either a fission or fusion bomb. Also a physical crash of nuclear devices is most likely to simply detonate their conventional explosives regardless of whether they are fission or fusion (although modern low shock sensitivity explosives make this less likely than it was).
3 H (deuterium) 1
No, nor anywhere else on earth. Nuclear fusion is beyond our capabilities at the moment and is likely to be for several decades to come.
Problem on nuclear fusion is upon confinement of reaction in earth atmosphere. Nuclear fusion required very high temperature to initiate the reaction. Sustaining reaction is not easy. It is likely the earliest nuclear fusion will be available commercially by 2050. It is a little far future for the current energy crisis would reach it peak around 2040.
The Sun's energy comes from the energy released from the fusion of two hydrogen nuclei to form a helium nucleus.
The next possible nuclear fuel is actually Thorium, but will likely remain Uranium
Nuclear fusion requires very high temperatures and immense pressures to start and continue. The problems with a nuclear fusion reactor would be:- 1) the high temperatures would melt the container: therefore, the reaction would have to be stored in a vacuum suspended by a magnetic field and the reactor would have to be continually cooled. 2) nuclear fusion occurs naturally in stars such as our sun: unless the fusion reaction was limited in size in some way, it would be likely that our planet is vapourised by the reaction.