Answer:
an external cost
Step-by-step explanation:
In simple words, External expenses are the cost levied on third parties as products or services are generated and used. Products and services from external costs are essentially supported by the subject suffering community as a whole who chooses to pay for them. For instance , when individuals purchase gasoline for a vehicle, they pay for the processing of such a gasoline (internal cost) though not for the expense of consuming that gas, including such environmental pollution.