We do not clean ponds or lakes but an aquarium needs to be cleaned. Why ?

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Solution

An aquarium is an artificial system which is also incomplete due to absence of producers, food chains and decomposers. There is no recycling and self-cleaning. However, a pond or a lake is a self-sustained, natural and complete ecosystem where there is perfect recycling of nutrients.

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Question 30
We do not clean ponds or lakes, but an aquarium needs to be cleaned. Why?

We do not clean ponds lakes but an aquarium needs to be cleaned regularly. Explain.

(a) What is an ecosystem? List its two main components.

(b) We do not clean ponds or lakes, but an aquarium needs to be cleaned regularly. Explain.

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