Which action will create a negative externality?

Constructing a private school generally provides positive externalities, such as improved education opportunities for local children and potential economic growth for the community. This action typically benefits both the students and the surrounding area, enhancing overall community welfare rather than imposing costs.

Using public transportation like a commuter train usually generates positive externalities, including reduced traffic congestion and lower carbon emissions. This mode of transport benefits not only the commuter but also the broader community by contributing to a cleaner environment and less crowded roads.

Increasing beehives near an apple orchard creates beneficial externalities, as the bees pollinate the apple trees, leading to improved crop yields. This mutually beneficial relationship enhances agricultural productivity and supports local biodiversity, positively impacting the environment and economy.