Answer:
The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants. A small proportion of this chemical energy is transformed directly into heat when compounds are broken down during respiration in plants.
Explanation:
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In the light reactions, H2O goes in, and O2 goes out.
Producer primary consumer secondary consumer tertiary consumer decomposer
14. It would indirect and 15. Direct