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An adult salivates this much per day, on average.

  1. 2 liters (1/2 gallons)
  2. 0.1 liters (0.026gallons)
  3. 1 liter (1/4 gallons)
  4. 1.2 liters (0.32 gallons)

Answer

The correct answer is C) 1 liter (1/4 gallons).

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