Why does a block of metal sink in water but the same size block of wood float?

the molecules in the metal are closer
together than the molecules of the wood.
the metal is more compact.

the molecules in the wood are closer together than the molecules of the metal.
the wood is more compact.

the wood has air in it, making it lighter.

the metal has more gravity, making it sink.

a

explanation:

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.

my answer is the prothallium.brainliest

this would be called india