Improvements in which area would reduce the possibility of damage to the environment when using uranium as a fuel? more-efficient extraction techniques better control of fusion reactions stronger-pumping wells thicker shielding around the reactor

The correct option is MORE EFFICIENT EXTRACTION TECHNIQUES.
Extraction of uranium has huge impacts on the natural environment. The processes of mining, transporting and refining uranium are not environmental friendly and they represent a great pollution hazard. Use of more efficient methods during extraction will go a long way in improving the environment.

Improvements in which area would help reduce the possibility of damage to the environment when using uranium as a fuel more-efficient extraction techniques. Uranium is a strong element in which it is use in nuclear energy so it will give more efficient extraction.