Which environmental policy must consider the expensive startup costs associated with building machines that harvest energy from clean sources?

reducing air pollution
regulating deforestation
introducing new farming methods
protecting ocean reefs

protecting ocean reefs

Explanation:

Ocean reefs are marine life.

Oceans are among clean sources of energy harvesting, therefore considering this policy shall ensure they comply with it before investment.

This policy shall make sure they do not lose their invested capital there after.

The other choices are environmental policies of different spheres of the environment  other than clean sources.

is D

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.

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this