CBSE Class 10 Science Our Environment Quiz 3

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1. The transfer of energy in a food chain is always:

A Unidirectional B Methane C Bi-directional D Random

2. Which of these organisms are the most important decomposers in an ecosystem?

A Algae and fungi B Fungi and bacteria C Algae and bacteria D Bacteria and virus

3. Which of these does not belong to biotic component?

A Parasites B Fungi C Bacteria D Soil

Practice more on Our Environment

Quiz 1 Quiz 2 Quiz 3