Final answer:
Passive environmental management refers to conservation efforts that allow natural processes to occur without human intervention, and creating wildlife reserves is an example of this strategy.
Step-by-step explanation:
Passive and active forms of environmental management represent two different approaches to conserving and restoring environments. Passive environmental management involves allowing natural processes to occur without human intervention, such as setting aside land for conservation and allowing ecosystems to develop naturally. On the other hand, active environmental management requires direct human action to manage or manipulate the environment, which includes reforestation efforts, renewable energy projects, and installing water treatment plants.
When looking at the options provided, creating wildlife reserves and protected areas is the best example of passive environmental management because it generally involves protecting areas from human development and allowing nature to maintain its own balance without ongoing human intervention.