In a study, the independent variable is the thing that you change to see how the change produces different results. In this study, the independent variable would be the use of nicotine.
Weather 50 states of weather related deaths
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There is a growing concern over the physical fitness of children and adolescents because many spend less time outside and moving, instead choosing to be stationary for long periods of time on a device. This is leading them to be less fit and to burn less calories. Many health professionals recommend children play or workout at least 60 minutes a day.
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Answer:
b. Taking a muscle to the point of tension and holding the stretch for a minimum of 20 seconds.
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