Correct Option: B. Selective logging combined with reforestation Explanation of Why Option B is Correct Selective Logging: This practice involves the careful removal of specific trees from a forest while leaving the majority of the forest intact. This method minimizes the impact on the surrounding ecosystem, allowing for the preservation of biodiversity and the maintenance of the forest's structure. By only harvesting certain trees, selective logging helps to ensure that the forest can continue to thrive and regenerate. Reforestation: This is the process of replanting trees in areas where they have been cut down or where forests have been degraded. Reforestation is crucial for restoring ecosystems, improving air quality, and sequestering carbon dioxide, which helps combat climate change. When combined with selective logging, reforestation ensures that the forest can recover and maintain its ecological functions. Together, selective logging and reforestation promote sustainable forest management by balancing the need for timber production with the need to protect and restore forest ecosystems. This approach supports biodiversity, enhances soil quality, and maintains water cycles, making it the most effective practice for sustainable forest management. Why the Other Options are Wrong or Weaker A. Clear-cutting without replanting: - Explanation: Clear-cutting involves removing all trees in a specific area, which can lead to significant ecological damage. This practice disrupts habitats, increases soil erosion, and can lead to the loss of biodiversity. Without replanting, the area may take decades or even centuries to recover, if it recovers at all. This method is not sustainable as it depletes resources and harms the environment. C. Monoculture planting of a single tree species: - Explanation: Monoculture refers to the cultivation of a single species of tree over a large area. While it may be easier to manage and harvest, this practice reduces biodiversity and makes forests more susceptible to pests and diseases. A diverse forest ecosystem is more resilient and can better withstand environmental changes. Therefore, monoculture is not a sustainable practice. D. Ignoring local biodiversity in forest planning: - Explanation: Sustainable forest management requires an understanding and consideration of local biodiversity. Ignoring local species and ecosystems can lead to practices that harm the environment and reduce the resilience of the forest. Sustainable management should incorporate local flora and fauna to maintain ecological balance and support the health of the forest. Summary of Key Points

• Selective logging minimizes ecological impact and preserves forest structure.
• Reforestation restores ecosystems and enhances carbon sequestration.
• Clear-cutting and monoculture practices harm biodiversity and sustainability.
• Ignoring local biodiversity undermines effective forest management and ecological health.

By understanding these concepts, students can appreciate the importance of sustainable practices in forestry and their role in environmental conservation.