Advertisements
Advertisements
प्रश्न
We do not clean ponds or lakes but an aquarium needs to be cleaned periodically. Why?
Advertisements
उत्तर
Ponds and lakes contain decomposers, which act as cleansing agents, whereas an aquarium does not have decomposers that cleanse it. Hence, an aquarium needs to be cleaned periodically.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
