The limiting current density of a fuel cell is reached when a. the concentration of a reaction product in the flow channel goes to zero. b. the slope of a reactant concentration goes to zero c the concentration of a reaction product at the electrode-electrolyte interface goes to zero. the concentration of a reactant at the electrode-electrolyte interface goes to zero. ell ts litmited b

the answer is alpha particles hope i you

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

plz give brainliest

answer: they produce more slow than unicellular organisms.

i think tornado but not 100%