<span>a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane. hope it helps :)</span>
Explanation:
Rust is the term we use to describe red iron oxides produced when ferrous metals corrode. Rust is the common name for the chemicals that result when iron reacts with oxygen and water. “Rust” is poorly defined in chemistry, however—lots of chemicals can be formed when iron is left exposed.
I would say it is C, Because its the climate.
<h3>Circulatory system</h3>
A clot typically causes blocked blood flow strokes. These are the most common, causing nearly 90 percent of all strokes. If you've had a stroke, you are at a higher risk of having a second stroke or heart attack.
It affects the arteries leading to and within the brain. A stroke occurs when a blood vessel that carries oxygen and nutrients to the brain is either blocked by a clot or bursts. When that happens, part of the brain cannot get the blood (and oxygen) it needs, so it starts to die.