Since Raina is preparing for her campaign speech over and over this means that she doesn't want to do any mistake or doesn't want to forget lines from her speech while performing on stage.
That is why, she is practicing intentionally more and more as she wants to deliver a perfect speech.
Therefore, we can conclude that this type of learning is intentional.
The process of breaking down of heavy nucleus into lighter ones is called nuclear fission.Similarly,the proces of combining lighter nucleus to heavy nucleus is also called nuclear fission.
