Question

the cold ocean water in a boiling water is converted into steam by conduction radiation convection photosynthesis

Explanation:

Conduction is heat transfer through direct contact. Radiation is heat transfer via electromagnetic waves. Convection is heat transfer by the movement of fluids. Photosynthesis is a process in plants to convert light - energy into chemical energy. In a boiling water reactor, heat from the nuclear reaction is transferred to the cold ocean water through conduction as they are in contact with heat - transfer surfaces.

Answer:

conduction