Answer:
It is an example of negative externality.
Step-by-step explanation:
Negative externality occurs when the actions of one economic agent interfere with the actions of third parties, that is, the activities of other economic agents, and thus these actions will not be clearly reflected in prices. In this case, Nick's company production is causing a negative externality by polluting the lake; and with it is increasing its production without this cost of pollution being charged.