Why is vinegar used in food preservation? a)the high ph and high acidity of vinegar destroy bacteria. b)the low ph and low acidity of vinegar destroy bacteria. c)the low ph and high acidity of vinegar destroy bacteria.

c) the low ph and high acidity of vinegar destroy bacteria.

Explanation:

Vinegar contains acetic acid which is preferred as a preservative in foods because it is expected to lower the pH of the food. As a result of this many microorganisms are incapable for surviving in such acidic pH. Otherwise the microorganisms like bacteria can contaminate the food and can make the food unfit for consumption.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.