What is the definition of color depth?

Keyboard shortcut to send the selected layer to the top of the layer stack?

How do you change a color photo to grayscale while keeping all color information?

Where can you adjust the number of states that can be saved in the History?

Random bright and/or off-color pixels found in poorly compressed jpeg images are called...

You have two layers and want to hide all the white pixels on the top layer. What is one blend mode you can assign to the top layer?

You can hold the __ key while using the elliptical marquee tool in order to constrain the selection to a perfect circle?

The selection marquee produces a clean sharp edge. To create a softer edge to any selection marquee which can be used?

Which file formats are appropriate for saving a high resolution photographic image intended for publication on the web?

Which color mode below is not an option for Photoshop Image Color Mode?

Which tool can be used to select irregular objects?