5th Grade Science Quiz
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ECOSYSTEMS: INTERACTIONS, ENERGY, AND DYNAMICS
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In a forest, earthworms and bacteria break down dead leaves into soil nutrients. What role do decomposers play?
A
They only clean up dead leaves so the forest floor looks neat.
B
They make the soil poisonous so new plants cannot grow.
C
They break down dead matter into nutrients, recycling matter back to soil.
D
They store the dead leaves unchanged inside the soil forever.
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