True or false? thank you

False

Explanation:

When we breathe, our lungs give us carbon dioxide (which is poisonous for humans) to take in O2

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.

answer by yourhope:

answer is

human impact on the environment can be seen in the deterioration of the !

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