Substitute services refer to temporary solutions provided when regular services or personnel are unavailable. This can include hiring substitute teachers in schools when the regular teacher is absent, or using temporary staff in businesses to fill in for employees on leave. These services ensure that operations continue smoothly without significant disruption. In various industries, substitute services help maintain productivity and meet demands. For example, in healthcare, nurses or doctors may be substituted to ensure patient care is not compromised. Overall, substitute services play a crucial role in maintaining continuity in various sectors.