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The flow chart "Sun → producer → consumer → decomposer" describes:
Answer & Solution
Correct answer: D.
1. Solar energy is captured by producers.
2. It is passed up the consumer chain and finally to decomposers.
3. Energy is dissipated as heat at each step; flow does not reverse.
_Source: NCERT Class 10 Science, Ch 13 "Our Environment", §13.1.1_
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