Yohei is creating a presentation for his class of fourth graders. Which TWO things will ensure the best response from his audience? use plenty of images
play an animation
provide plenty of text to read
spend five minutes on each slide

Why were most movies from the late 1890s until the early 1930s only filmed in black and white? there were only a few people who could afford the technology to produce color motion pictures back then. audiences did not want color motion pictures until later. the film used to make color motion pictures often overheated, which was a safety hazard, so it was generally not allowed. color films had to be hand-colored, frame by frame.