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documentary – n. a movie or television program that tells the facts about actual people and events
microscopic – adj. able to be seen only through a microscope : extremely small
3D – adj. made in a way that causes an image to appear to be three-dimensional (with length, width and depth)
tiny – adj. very small
sustain – v. to provide what is needed for (something or someone) to exist, continue, etc.
desalination – n. to remove salt from (something, such as water)
