The correct answer is D. Reduction of the human population
Step-by-step explanation:
Shoreline dredging occurs when material such as soil is removed from the water and relocated in a different place which is commonly used to make body waters deeper, use the material in another area to construct land, create more space for ships, among others. However, this process has important negative effects on the environment as coral reefs can be damaged if dredging occurs in them or near to them; this affects the ecosystems and therefore can lead to the death of marine life and this the seagrass beds are destroyed. On the other hand, the reduction of the human population is not a negative outcome or result of shoreline dredging because this does not affect directly the life of humans and does not represent a threat to them. Thus, the one that is not a negative outcome of shoreline dredging is the reduction of the human population.