Most scientists and engineers agree in principle that deep burial in an underground repository is the safest and cheapest way to store ____ for thousands of years. A) sequestered CO₂ B) fracking fluids C) highly toxic non-radioactive waste D) high-level radioactive wastes E) coal ash

Question

Quizplus · Accepted Answer

The phrase "thousands of years" indicates the need for long-term storage, and high-level radioactive waste is the type of waste that requires such storage due to its long half-life and potential for harm to humans and the environment. The other options are not typically stored in underground repositories and/or do not have the same level of risk as high-level radioactive wastes.

Most Scientists and Engineers Agree in Principle That Deep Burial