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Pools of similar surface area located in the same geographical region, but with differing water depths, will have the same __________.

  1. chemical balance

  2. heat absorption rate

  3. surface heat loss

  4. water clarity

The correct answer is: chemical balance

Pools with similar surface areas in the same geographical region will have the same chemical balance, regardless of differences in water depth. This is because the chemical composition of the pool is affected by external factors, such as weather and pollution, rather than the depth of the water. Therefore, options B, C, and D are incorrect as they all involve considerations of depth, which has no impact on the chemical balance of the pool.