Question

why is a significant financial investment required in building nuclear power plants? to ensure high emissions of co2 to grow uranium as crops to achieve high energy yield to implement safety measures and redundancies

Explanation:

Nuclear power plants deal with radioactive materials. Safety is of utmost importance. High financial investment is needed to implement safety measures (like containment structures) and redundancies (backup systems) to prevent disasters. Also, nuclear power plants have complex engineering and construction requirements. While achieving high energy yield is a goal, it's the safety - related aspects that primarily drive the significant financial investment. Uranium is mined, not grown as crops. And nuclear power plants are low - carbon (contrary to ensuring high CO2 emissions).

Answer:

to implement safety measures and redundancies