PLEASE ASAP! GIVING BRAINLIEST! At which of the following points during the carbon cycle is energy transformed from chemical to mechanical energy?

When fossil fuels are burned releasing carbon dioxide

When stored energy is released as heat

When ATP molecules are used to fuel movement

When carbon dioxide is converted to glucose

the answer is A

Explanation:

When ATP molecules are used to fuel movement.

Hopes this helps :))

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.