Question

which of the following is not a common threat to mangrove forests?
pollution from tourists
unsustainable harvesting (shrimp farming)
acid mine drainage
development of coastal communities

Explanation:

Pollution from tourists can harm mangrove ecosystems. Unsustainable harvesting like shrimp farming can damage mangrove habitats. Development of coastal communities often leads to mangrove destruction. Acid mine drainage is mainly associated with mining areas and not a common threat to mangrove forests.

Answer:

acid mine drainage