Why do some deep seas have more oxygen than surface water?

Explanation

**Step-by-Step Solution:**

1. **Understanding Oxygen Concentration in Water:**
- Oxygen concentration in ocean water is influenced by various factors, including temperature and the presence of organisms that consume oxygen.

2. **Surface Water Oxygen Levels:**
- Surface ocean water typically has oxygen concentrations that are in equilibrium with the Earth's atmosphere. This means that the oxygen levels in surface water are relatively high due to direct contact with the air.

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