Question 3: In particular, the ________ was a proposed nuclear reactor with a nuclear fuel cycle that produced no transuranic waste and in fact, could consume transuranic waste.
Question 6: [20] The radioactivity of fly ash is about the same as black shale and is less than ________ rocks, but is more of a concern because a small amount of the fly ash ends up in the atmosphere where it can be inhaled.
Question 7: Certain radioactive elements (such as ________) in “spent” fuel will remain hazardous to humans and other living beings for hundreds of thousands of years.
Question 10: At that point the fuel has to be replaced in the reactor with fresh fuel, even though there is still a substantial quantity of uranium-235 and ________ present.