Las variables o factores que no se modifican o se mantienen iguales se denominan

Ithink it’s carbon dioxide

Answer

it is the minimum amount of material needed to sustain a fission reaction.

explanation

critical mass is the minimum amount of fissionable material that must be assembled for a sustained fission reaction to take place. although two to three neutrons are produced for every fission, not all of these neutrons are available for continuing the fission reaction. if the conditions are such that the neutrons are lost at a faster rate than they are formed by fission, the chain reaction will not be self-sustaining.   at the point where the chain reaction can become self-sustaining, this is referred to as critical mass.

Your is  answer:   4.44*my answers too short so i'm just gonna write this so that it lets me submit it, lol*

Dry-steam power plants take advantage of natural underground sources of steam. the steam is piped directly to a power plant, where it is  used  to fuel turbines and  generate  electricity. dry steam is the oldest type of power plant to  generate  electricity using  geothermal energy. hope this !