Question

1. what are externalities? consumer preferences government price supports perfect competition unintended side effects of economic activity

Explanation:

Externalities in economics refer to the unintended consequences of economic activities that affect third - parties not involved in the production or consumption decision. They can be positive (e.g., a beekeeper's bees pollinating a neighbor's crops) or negative (e.g., pollution from a factory affecting nearby residents). The other options are not related to the definition of externalities.

Answer:

Unintended side effects of economic activity