Answer:
B. increased concentration of salt water inundating the habitat over a long period of time
Step-by-step explanation:
For organisms to survive in their habit they require stability so that they can survive using the traits evolution has created.
Importance of Habits
Organisms cannot survive if they do not have a habit to survive in. Over time, development by humans has destroyed habits. Additionally, increased consumption of fossil fuels has caused global warming that harms habits.
Restoration is beneficial to organisms because it increases the space in which organisms can live. So, this is not a negative impact.
Inundating Habits
First, let's define inundating. Inundating is the act of overwhelming or overpowering something. Organisms would not be able to survive if the salt concentration became overwhelming. They would not be suited to survive that environment. So, this would have a negative impact.
Stability
For thousands of years organisms have adapted to their habits, including to the pH of the water. So, if this pH remains stable, then they will have the necessary traits to survive. Thus, this cannot be a negative impact either.
Biodiversity
Healthy ecosystems require a large "web" of different plants and animals. Without this biodiversity, ecosystems cannot support all of the life within the habit. This means that increasing biodiversity, over time, would help ecosystems support greater life.