The source of energy in an ecosystem is

Options

A. sun
B. decayed bodies
C. green plats
D. sugar

Answer

**Step-by-Step Solution:**

1. **Define Ecosystem**: An ecosystem is a community of living organisms (plants, animals, and microorganisms) interacting with their physical environment (air, water, soil). It includes both biotic (living) and abiotic (non-living) components.

2. **Identify Components of Ecosystem**: The living components of an ecosystem include:
- **Producers**: Organisms that can produce their own food, primarily plants that use sunlight for photosynthesis.
- **Consumers**: Organisms that consume other organisms for energy, which can be further divided into primary consumers (herbivores) and secondary consumers (carnivores).
- **Decomposers**: Organisms that break down dead organic material, returning nutrients to the soil.

3. **Identify Non-living Components**: The non-living components of an ecosystem include:
- **Air**: Essential for respiration in many organisms.
- **Water**: Vital for all living organisms.
- **Land**: Provides habitat and nutrients for organisms.

4. **Determine the Source of Energy**: The primary source of energy in an ecosystem is the **Sun**.
- Plants (producers) capture sunlight through photosynthesis to create food.
- This energy is then transferred through the food chain to consumers and decomposers.

5. **Conclusion**: Therefore, the source of energy in an ecosystem is the **Sun**.

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