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An adult salivates this much per day, on average.

Question 1:

An adult salivates this much per day, on average.

A. 2 liters (1/2 gallons)

B. 0.1 liters (0.026gallons)

C. 1 liter (1/4 gallons)

D. 1.2 liters (0.32 gallons)

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Trivial Practice Quiz science-technology - Test 10 | Englishfreetest.com

30 minutes
15 questions