Earth’s crust continuously melts and solidifies in the upper mantle. why does oceanic crust solidify faster than continental crust? a continental crust spans a wider area and is generally thinner than oceanic crust. b magma beneath oceanic crust is a lower temperature than magma beneath continental crust. c when magma comes into contact with ocean water it cools faster than when it reaches continental rock. d salt in ocean water accelerates the solidification process by way of chemical reaction.

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.

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