Water diffusion is called osmosis. Oxygen is a small molecule and it's nonpolar, so it easily passes through a cell membrane<span>. Carbon dioxide, </span>the<span> byproduct of </span>cell<span>respiration, is small enough to readily diffuse out of a </span>cell<span>. Small uncharged lipid molecules can </span>pass through the<span> lipid innards of </span>the membrane<span>.</span>
Answer:
To swim faster
Reducing the drag. As with all the other tips here this one is not about how strong you are as the right technique smoothes out your swimming using your strength in a much more efficient way.
Work on your kicks.
Secrets of good propulsion.
Balance
Slightly spread your fingers.
the ice because the albedo value is high