<u><em>i think is coronary veins becuase those veins carry poor oxigenated blood.</em></u>
hope it helps
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the application of scientific knowledge for practical purposes
<span>When light hits a mirror, all of it is reflected, none is absorbed, and none passes through. However, when a light hits a piece of paper, all of it is absorbed except for the white-colored light. Since the white-color is reflected, the paper will seem as if it's white. And since the mirror reflects all light, it will look like whatever lightwaves that are hitting it</span>