The point on earth's surface that is directly above where an earthquake begins is the a. fault b. focus c. fissure d. epicenter m plzzz

The correct answer is D, epicenter.

A fault is a fracture in the earth's crust, in which the crust on either side is parallel to the other.

A focus is under the epicenter, inside the earth itself This is where the earthquake begins.

A fissure is a crack in the Earth's surface.

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.