Questions: As forest ecosystems decrease, the world can lose what valuable ecosystem service? Water leveling Productive wildfires Carbon storage Carbon releases

The answer is: Carbon storage

Explanation for each option:

• Water leveling: While forests do play a role in water regulation, the term "water leveling" is not commonly used to describe a specific ecosystem service provided by forests.
• Productive wildfires: Wildfires are generally not considered a valuable ecosystem service. They can be a natural part of some ecosystems, but they are not a service provided by forests.
• Carbon storage: Forests are crucial for carbon storage as they absorb carbon dioxide from the atmosphere and store it in biomass and soil, helping to mitigate climate change.
• Carbon releases: This is not a valuable ecosystem service. In fact, the release of carbon (e.g., through deforestation) contributes to climate change.

Summary: The valuable ecosystem service that the world can lose as forest ecosystems decrease is carbon storage.