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Visual snow syndrome is a very rare disease which can be detrimental to patients. It is often described as a visual disturbance present in the entire visual field with flickering white and black dots, similar to the static seen on an analogue television . Does visual snow get worse overRead More →

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Audio-visual aids can be classified into 3 groups – (1) purely auditory; (2) Purely visual; (3) combined audio-visual. Which is not audio-visual aids? Hence, we can say that graph is not an audio-visual aid, but a visual aid. What are the disadvantages of audio-visual aids? Disadvantages of Audio Visual Aids:Read More →