Which of the following is a benefit of implementing better land-use practices?

Implementing better land-use practices contributes to a decrease in sedimentation levels, which is crucial for maintaining healthy marine environments, particularly coral reefs. When land-use practices are improved, activities such as agriculture, urban development, and deforestation can be managed in a way that minimizes soil runoff into coastal waters. Excess sedimentation can smother coral reefs, reduce the amount of sunlight reaching them, and disrupt the delicate balance of marine ecosystems. Thus, strategies that improve land management effectively reduce sedimentation, enhancing the overall water quality and health of coral reef systems.

While other options might seem beneficial, they do not directly relate to the specific benefits of improved land-use practices in the context of marine ecosystems. For instance, increased soil erosion would negatively impact water quality and coral reefs, and while higher agricultural productivity might come from better land management, it is not as directly connected to marine health as sediment reduction. The reduction of coral bleaching is an important issue but is influenced by various factors, including water temperature and pollution, rather than solely by land-use practices.