at night, the demand for electricity supplied by a fission nuclear reactor decreases. how is the fission…

at night, the demand for electricity supplied by a fission nuclear reactor decreases. how is the fission nuclear reaction controlled to avoid overproduction of electricity?\no the temperature of the reactor is lowered because high temperature and pressure are needed.\no the temperature of the reactor is raised because the reaction slows down at higher temperatures.\no the exposure between the fuel rods and a neutron - absorbing material is increased.\no the exposure between the fuel rods and a neutron - absorbing material is reduced.

at night, the demand for electricity supplied by a fission nuclear reactor decreases. how is the fission nuclear reaction controlled to avoid overproduction of electricity?\no the temperature of the reactor is lowered because high temperature and pressure are needed.\no the temperature of the reactor is raised because the reaction slows down at higher temperatures.\no the exposure between the fuel rods and a neutron - absorbing material is increased.\no the exposure between the fuel rods and a neutron - absorbing material is reduced.

Answer

Answer:

The exposure between the fuel rods and a neutron - absorbing material is increased.

Brief Explanation:

In a fission nuclear reactor, neutrons cause fission. Neutron - absorbing materials can absorb neutrons. Increasing exposure to these materials reduces neutrons available for fission, slowing the reaction and avoiding over - production of electricity when demand is low.