Snug but do not make it too tight because if it is very tight against the skin then blood circulation will decrease.
However, if the friend appears to be very injured, he/she might need to get examined by a professional
It is true that frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen.
during active, transport, substance move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is active because it requires the use of energy. <em>It</em> <em>is</em><em> </em><em>t</em><em>he</em><em> </em><em>opp</em><em>osite</em><em> </em><em>of</em><em> </em><em>passive</em><em> </em><em>trans</em><em>port</em><em>.</em>
I hope this was helpful and useful