<span>To get the most use from your exercise, stay in your target heart rate range for at least 20 minutes during an exercise session.</span>
The pollution and garbage that are evaporating that conduct acid rain and thick moisture. some what of my best way to answer.
Skin<span> is an elastic covering. It </span>protects<span> you against exposure to dangerous things in the environment such as bacteria. Since they form an elastic cover, they are able to B)Extend and contract for movement.</span>