The running out of the nuclear energy from the star indicates that the star is about to die and it can die in so many ways. The Supernova explosion is one way that the star might die, triggering the beginning of a new star's life cyce. The Supernova is said to be the greatest explosion that can happen in space.
Reinforcing existing concrete masonry walls or building masonry or concrete walls outside existing walls. Deployable barriers can also be used to prevent flooding when deployed prior to a storm.
Answer:
C. They have different niches in the same habitat