Which statement correctly describes the nucleus of the atom?
the nucleus of the atom contains the electrons.
o the nucleus of the atom is mostly empty space.
the nucleus of the atom surrounds the center of the atom.
ferdie
the nucleus of the atom contains most of the mass of an atom.

Answer : last opinion

The Nucleus of the Atom contains most of the mass of the atom

Ithink the answer would be a

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.