Fresh water is any body of water with a low salt concentration. Organisms in fresh water various challenges which includes; Osmotic concentration such that fresh water is permanently dilute and most cells cannot function at this concentration of ions. Varying temperatures, variation in oxygen levels and reproduction and life cycle due to permanence of habitat and physiological difficulty of regulating osmotic concentration in larvae and juveniles.
Evolution is a scientific theory as its ideas are supported by facts and inference
We require to keep our water supply clean because we imbibe that water. If our water supply wasn't unsullied, we would die of dehydration. Another reason is that without water, all the crops would die and we wouldn't have any aliment to victual and so we would withal die of hunger.
Heat can help relieve joint pain<span>. If you get sore muscles once in a while, you can take </span>acetaminophen<span> (</span>Tylenol) or anonsteroidal anti-inflammatory drug<span> (</span>NSAID<span>) like </span>aspirin,ibuprofen<span> (</span>Advil<span>, </span>Motrin<span>), or </span>naproxen<span> (</span>Aleve<span>)to help ease the discomfort. A hot bath may help</span>
