They both involve topics related to the natural world, and are both based on empirical evidence. <span />
Diet and Exercise affect blood lipid levels in a good way. It all depends on your weight and genetics. If you diet and exercise you will start to lose weight and in turn, it will help your heart to become more healthy and unhealthy fat levels/ lipids to decrease helping to lower your blood pressure and improve your metabolism (Metabolism is t<span>he sum of the chemical reactions that take place within each cell of your body and that provide energy for vital processes and for synthesizing new organic material.)
I hope this helps :)</span>
The correct answer is the control variable. For example, if you want to measure how men and women like cats, you would present the same cats to all the people (that;s the constant variables) and gender is your control variable.
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When a warm air mass is caught between two colder air masses - cool temperatures and large amounts of rain or snow. When a cold air mass meets a warm air mass and remain separated. Brings<span> many days of cloudy, wet </span>weather<span>. ... </span>Brings dry<span>, </span>clear weather<span>.</span>
D, it conducts electricity so stay away from metal if you're in a thunderstorm