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Ecosystem consists of :
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- A biotic community and its non–living elements
- Population
- A population and its non–living elements
- A biotic community
Correct Option: A
An ecosystem is defined as any community of living and non-living things that work together. Biotic components are the living things that shape an ecosystem. All non-living components of an ecosystem is called abiotic components such as temperature, light, moisture, air currents, etc.