A contaminated aquifer is being assessed for bioremediation potential. Scientists introduce ¹⁴C-labeled toluene and monitor ¹⁴CO₂ production over time. Which of the following conclusions is MOST supported if significant ¹⁴CO₂ is detected in the headspace?

Question

Answer

Abiotic processes are converting toluene into CO₂.

Answer

Toluene is being transformed into biomass but not completely degraded.

Answer

The microbial community is unable to utilize toluene as a carbon source.

Answer

The microbial community is actively degrading toluene via mineralization.

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A contaminated aquifer is being assessed for bioremediation potential. Scientist...

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