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1. Photic Zone: ~200m; receives plenty insolation2. Aphotic Zone: beyond 200m; does not receive enough sunlight3. Thermocline: extends from 500 to 1000m; rapid decrease in temperature; temperatures below this zone approcah 0°C

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1. 1. Photic Zone: ~200m; receives plenty insolation
2. Aphotic Zone: beyond 200m; does not receive enough sunlight
3. Thermocline: extends from 500 to 1000m; rapid decrease in temperature; temperatures below this zone approcah 0°C
Image: Vertical Temperature Distribution of Oceans





 
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