Answer:
Aquarium and farm house, are artificial or manmade
ecosystem. In artificial ecosystem biotic and abiotic component are maintained
artificially like cleaning, feeding and supply of oxygen to fishes in aquarium
and irrigation in crop or farm house.
While abiotic and biotic component of
natural ecosystem are maintained naturally like nutrient cycle, self sustainability,
prevention of soil erosion, pollutant absorption and reduction of threat to
global warming (ecological servicer), etc.
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