Practice Quiz

IB Biology Exam Prep

Category - Biology

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Which of the following practices is the best way to reduce the environmental consequences associated with logging forests in mountainous areas?
  1. Applying nitrogen and potash fertilizers after logging the site.
  2. Closing the logged area to recreational uses until trees are reestablished.
  3. Leaving some trees standing on the site when it is logged.
  4. Cultivating the soil immediately after logging and planting tree seedlings.
Explanation
Correct Response: C. When logging occurs in a mountainous area and all the trees are removed, the soil is no longer held in place, and erosion begins to occur. If some trees are left standing, there will be less erosion in the area, and environmental consequences will be reduced. Applying fertilizers (A), closing the logged area (B), and planting tree seedlings (D) are not the best ways of reducing erosion in a clear-cut logged area.
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