Graphite is a mineral composed exclusively of the element carbon. Graphite has the same chemical composition as Diamond, which is also pure carbon, but the molecular structure of Graphite and Diamond is entirely different.This causes almost opposite characteristics in their physical properties. Graphite is rather common mineral, but fine crystals are rare.Most Graphite mining areas produce enormous quantities from a single or several large Graphite vein s, but collector specimens in good crystals are not commonly encountered.raphite has the same chemical composition as Diamond, which is also pure carbon, but the molecular structure of Graphite and Diamond is entirely different.
A , Cardiology (Cardiovascular Disease), answered. Blood is pumped into the lungs by the right lower chamber of the heart, called the right ventricle. It then returns to the left upper chamber, called the left atrium, and flows into the left ventricle, which pumps it to the rest of the body.
However getting blood back from the legs isn't so easy. There is no heart in the leg and so the body needs a different way to get blood back to the heart. After the blood has been through the tissues, delivering oxygen and food to keep the cells alive, it collects together in the veins.When you are lying down, there is just enough pressure left in the blood to get flow back to the heart.fter the blood has been through the tissues, delivering oxygen and food to keep the cells alive, it collects together in the veins. When you are lying down, there is just enough pressure left in the blood to get flow back to the heart.