We do not clean ponds or lakes,but an aquarium needs to be cleaned. Why?
- APonds are larger than aquariums.
- BAquariums are artificial and incomplete ecosystems,whereas ponds are natural and self-sustaining ecosystems.
- CPonds contain more fish than aquariums.
- DAquariums do not have plants.
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Similar Questions
Given below are a few statements related to biodiversity. Pick those that correctly describe the concept of biodiversity.
$(i)$ Biodiversity refers to the different species of flora and fauna present in an area.
$(ii)$ Biodiversity refers to only the flora of a given area.
$(iii)$ Biodiversity is greater in a forest.
$(iv)$ Biodiversity refers to the total number of individuals of a particular species living in an area.
$(i)$ Biodiversity refers to the different species of flora and fauna present in an area.
$(ii)$ Biodiversity refers to only the flora of a given area.
$(iii)$ Biodiversity is greater in a forest.
$(iv)$ Biodiversity refers to the total number of individuals of a particular species living in an area.
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