The Indicates layer visibility button, next to the layer thumbnail on the Layer panel, is used to _______________.

A group of two or more contiguous linked layers in which the bottom layer serves as the mask is called a _______________.

The _______________ tool, located on the Tools panel, can be used to magnify or reduce the view of an image.

The _______________ tool has the opposite effect of a brush . . . instead of brushing on pixel color, you brush it off.

Help topics display in a _______________ window.

Portrait orientation means the _______________.

A clipping mask is indicated in the Layers panel when one or more layers are indented and appear with _______________.

How many layer masks can be added to an image?

Which choice best describes how the Magic Wand Tool selects an object?

A(n) _______________ channel is used to create and store masks.