1. Could fusing two stable nuclei that have mass numbers in the vicinity of 100 be an energy-releasing process? (yes or no)
2. What is meant by enriched uranium?
a. Enriched uranium is an uranium-containing substance in which its natural amount of uranium-235 was decreased.
b. Enriched uranium is an uranium-containing substance that includes not only uranium-235 but also uranium-236 and uranium-237.
c. Enriched uranium is an uranium-containing substance in which its natural amount of uranium-235 was increased.
d. Enriched uranium is a substance that contains uranium-236.