<span>Mostly all ionic compounds dissolves in water because molecules present in the water hydrates the ions. Water is a formation of polar molecules hydrogen (partial +ve) and oxygen ( partial -ve) respectively. When a pinch of salt is poured in water, it breaks into na+ (Sodium positive) and Cl- ( chlorine negative) ions respectively and the partially positive hydrogen molecules are attracted to the chlorine anions where as the partially negative oxygen molecules are attracted to the sodium cations Then the formed bond are free to move around the water which makes it to dissolve in water.</span>
In the given case, the first line of defense is breached.
The first line of defense involves the chemical and physical barriers, which are always prepared and ready to fight against the infections of the body. These are the surface barriers, which inhibit the admittance of pathogenic components.
It comprises the tears, skin, cilia, mucus, urine flow, stomach acid, bacteria that are helpful, and white blood cells known as neutrophils.
Animals were used for food.!