The photograph shows a consequence of air pollution. what does the
photograph show?

a. algae overgrowth occurs in the presence of too many nutrients.

b. pollutants react with water and are deposited on earth's surface

c. pollutants break down the layer of ozone in the stratosphere.

d. gaseous pollutants and particulate pollution mix over cities.

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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.

the answer is "a.) well–developed vascular system."

explanation: