Carbon dioxide diffuses out of the tissues and into the blood, where it is dissolved in the plasma. While some of the carbon dioxide remains dissolved in the plasma, most carbon dioxide diffuses into our red blood cells.
A screencast is a digital movie in which the setting is partly or wholly a computer screen, and in which audio narration describes the on-screen action. It's not a new idea.
You can use screencast videos to offer your friend some technical advice, to record demos of your new iOS app if youâre a developer, to post a review of a new app on YouTube or to show everyone how you beat the final boss on that particularly hard game you were playing.