Environmental
What is 'natural attenuation' in the context of Rhode Island contaminated site cleanup?
ALetting the property naturally decay
BThe natural processes (biodegradation, dilution, dispersion, sorption) that reduce contamination levels over time without active intervention✓ Correct
CA CRMC coastal erosion management technique
DA DEM permit for passive remediation
Explanation
Monitored natural attenuation (MNA) relies on naturally occurring processes (microbial degradation, dilution, chemical reactions) to reduce contamination to acceptable levels. It is sometimes used as a cleanup strategy, often in combination with other measures.
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