2
QuizClassification

Human Impact on the Earth — Test

Question 2 • Earth and Space Science

Zones with dissolved oxygen levels greater than 6 mg/L are considered to have healthy conditions, while zones with dissolved oxygen levels less than 6 mg/L are considered to have stressed conditions. Classify each zone based on whether it shows signs of healthy or stressed water conditions.

Answer

Classification Answer:

Zone A,Zone B|Zone D,Zone C

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