(a) What is an ecosystem? List its two main components. (3)(b) We do not clean ponds or lakes, but an aquarium needs to be cleaned regularly. Explain.
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Eco system is a place where all organisms live in safe.
Because in aquarium there are aquatic organisms live such as fish, octopus and frog etc for there survival we should clean it.
Because in aquarium there are aquatic organisms live such as fish, octopus and frog etc for there survival we should clean it.
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