All species have a tolerance limit before they are no longer well-suited to live in their environment. In 3 sentences discussed the potential outcomes for a population when that limit is reached, there are at least four possibilities.

When the tolerance limit of a population is reached, there are several potential outcomes. They may face extinction if they are no longer able to survive in their environment. Alternatively, the population may undergo a significant decline if individuals are unable to adapt or find suitable resources. In some cases, the population may be able to shift to a new location or adapt in order to survive.