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"What is the percentage of energy that is passed on to primary consumers? Select one:a. 50% b. 10% c. 30% d. 5%"

"What is the percentage of energy that is passed on to primary consumers? Select one:a. 50% b. 10% c. 30% d. 5%"

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Guest [Entry]

Letter B. 10%. Why? 10% rule.