Which of the following is an example of man-made ecosystem?
aquarium
An artificial ecosystem meets all the criteria of a natural ecosystem but is made and controlled by humans. It is created to mimic a natural ecosystem. Aquarium is an artificial ecosystem as it has the biotic and abiotic components but it is created and maintained by man. Herbarium cannot be an ecosystem because it has no living components. Tissue culture is a scientific method of plant propagation and has no connection to ecosystem. Forest is a natural ecosystem which is sustainable by itself without human intervention.