Answer:
Reservoirs can be defined as the stored form of energy that can be used further in the future.
Reservoirs can be living or it can be non living. The living reservoir can be living organism or a non living site.
Non living reservoir can be defined as the components that has no life. It includes soil and water in the environment.
The living organism in which the infectious agents can find a home is considered as living reservoirs. Example: insect, human body, et cetera.