1 To find what your carâs fuel economy is (Metric System), multiply the amount of fuel used by 100 and divide that by the total kilometres driven. 2  Example: 42 litres x 100 / 400 = 10.5 litres / 100km.
There are four chambers of the heart: a right atrium, a right ventricle, a left atrium and a left ventricle. First, deoxygenated blood (blood without oxygen) is carried from the body through the Inferior and Superior Vena Cava. From these vessels, the blood is dumped into the Right Atrium of the heart.
Best Answer: Deoxygenated blood enter the right side of the heart. It enters through the venaceva and into the right atrium. The blood is then pumped into the right ventricle through a valve. The pulmonary artery then carries the blood to the lungs, where gas exchange takes place.