What key can be used to keep a line segment going in a straight horizontal path, a straight vertical path, or a 45 degree angle?

How many pixels are in 1 inch?

Of the following; what will 'dither' do to an image?

What is not a photoshop supported Video format

How do you invert a selection?

Shortcut for the Zoom Tool?

The mask created by the Replace Color command is permanent.

Which Command lets you free memory, used by the Undo command, the History Palette, or the Clipboard?

Auto Blend Layers is available for which mode?

Color Dodge, Color Burn, Lighten, Darken, Difference, and Exclusion blending modes do not work on Lab images.

Which file, saved in the Adobe Photoshop format, is used by the filter to create the displacement maps?