nulear fusion releases a large amount of energy
exonuclease is nuclease. lightning is tremendous_release_of_energy. thermonuclear_reaction is not fusion. sun is giant_fusion_reactor. fusion_bomb is weapon_of_mass_destruction. cold_fusion is fusion. cold_fusion is not fusion. thermonuclear_reaction is fusion. sun is not giant_fusion_reactor. endonuclease is nuclease.