下列有关核能表述正确的是（ ）。
- A.氢弹爆炸发生轻核聚变，其威力比原子弹小
- B.核电站使用的燃料一般是铀等放射性重金属
- C.自然界只有在人为条件下才会发生热核反应
- D.核电站的能量转换过程是直接从核能到电能
正确答案及解析
正确答案
解析
氢弹的爆炸威力比原子弹要大，A项错误。太阳就是热核反应，C项错误。核电站是先把核能转换成内能，最后转换成电能，D项错误。
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