Question

Rosa drew a flow chart of the carbon cycle.

Flow chart of the carbon cycle with 4 boxes connected by arrows. Box 1: carbon dioxide in the atmosphere. Box 2: X. Box 3: consumers eat producers. Box 4: Y. The arrow that follows box 4 connects to box 1.
Which labels best complete the flow chart?

X: Producers undergo photosynthesis.
Y: Decomposers return carbon to the soil and release waste.
X: Decomposers return carbon to the soil and release waste.
Y: Producers undergo photosynthesis.
X: Decomposers take in carbon dioxide.
Y: Producers absorb carbon through their roots.
X: Producers absorb carbon through their roots.
Y: Decomposers take in carbon dioxide.

Answer 1

Choose: X = Producers undergo photosynthesis. Y = Decomposers return carbon to the soil and release waste.

Reason: Producers take in atmospheric CO2 during photosynthesis, consumers eat the producers, and decomposers break down dead organisms/waste, returning carbon to the soil and releasing CO2 back to the atmosphere.