The green plants in a terrestrial ecosystem capture about ______ of the energy of sunlight that falls on their leaves and convert it
into food energy.
Explanation:
- Green plants, through photosynthesis, capture energy from sunlight.
- Not all captured sunlight is converted into food energy.
- Most energy is either reflected or lost as heat.
- Option 1: 5%
- Overestimates the typical energy conversion.
- Option 2: 14%
- Greatly overestimates; very high conversion rates are rare in natural settings.
- Option 3: 8%
- Also overestimates natural conversion rates.
- Option 4: 1%
- Generally accepted estimation for natural terrestrial ecosystems.
- Represents the average efficiency of photosynthesis.
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