Why is fusion nuclear energy currently not widely used as a source of electricity?

The answer to this question is very simple: because we don't knw how to do it yet.

All the existing nuclear energy plants work based on the fission of heavy elements (like Uranium) and not on the fusion of hidrogen (like the H-bomb).

There are some research taking place in Europe (the ITR project, in southern France) in order to build a prototype that produces energy based on fusion.

The main problem faced by the scientists seems to be the difficulty in maintaining a plasma gas (required for the fusion) in a container that resists the enormous temperatures involved in the process (we are talking about millions of Kelvins).

A fusion reactor would replicate, in a smaller scale, the processes that take place inside our Sun. Once operational, this technology would solve our energy problem in the foreseable future.

:-)

C: Fusion reactions require very high temperatures and pressure

Explanation:

This was the answer on Edge.

veto bills

explanation:

when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.