zoom-out Zoom Out zoom-in Zoom In invert Invert cursor Bigger Cursor brightness Brightness contrast Contrast monochrome Grayscale revert Undo Changes Questions bank of Microscopical Techniques (317Z) 23 December 2020 Questions bank of Microscopical Techniques (317Z): https://drive.google.com/file/d/1ztHOlHGvFQyNR5UAuWw9eKFQDEr51WVq/view?usp=sharing