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Which factor has a positive effect on the quality of sleep?A. Sleeping in a quiet environment.B. Sleeping hours that synchronize with the circadian rhythm.C. Spending additional time in stage II of the sleep cycle.D. Sleeping in a dark environment

User ShawnFumo
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Answer:

A. Sleeping in a quiet environment

Step-by-step explanation:

As it's free from stress

User Imtiyaz Khalani
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