People normally sleep for up to 12 hours
Answer:
A variety of light bulbs contain mercury. Mercury is important in lighting since it helps to the efficiency and longevity of the bulbs. In general, fluorescent and other mercury-added bulbs are more energy efficient and last longer than incandescent and other comparable lights.
The choke's job is to create a very high voltage between the filaments at first (across the two ends of the tube light). The choke again delivers a low voltage after the gas in the tube is ionized. A choke is a wire coil. Mercury vapor fills fluorescent tubes and lights.
Explanation:
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Injury Prevention, sorry I just saw this question.
You should always stretch Before your workout. By stretching before your workout you will prevent potential injuries as well as being less sore after the workout.
