Human activities disrupting marine habitats

Steps:

• Identify biodiversity as variety of life in an ecosystem, threatened by habitat loss or pollution.
• Evaluate each option's impact on coastal marine environments.
• Options A, B, C promote conservation by reducing direct harm to species.
• Option D introduces destructive practices that harm habitats and species.

Why D is correct:

• Seabed disturbance, like trawling, destroys habitats (e.g., coral reefs, seagrass beds), reducing species diversity per ecological succession principles.

Why the others are wrong:

• A: Protects breeding populations, increasing fish numbers and overall diversity.
• B: Allows smaller fish to escape, preserving young populations and food chains.
• C: Prevents nutrient overload and toxins, maintaining healthy ecosystems for diverse species.

Final answer: D