Answer:
Service products cannot generally be produced in advance or stored.
Services are typically variable, and in almost every service offering, the service cannot start until the customer arrives and actively participates.
Step-by-step explanation:
Services have distinguishing characteristics that differentiate them from goods.
To start with, services cannot be produced in advance as production and consumption happen at the same time.
Also,the customer must be present and actively contributes to the delivery of the service, for instance, haircut cannot happen except the customer comes to the salon and obeys the instructions of the barber as they go along.
Besides,there is no physical substance in service unlike purchase of goods.