I opened a new project in Photoshop Elements 6 and began adding layers. I'm at over 360 and it hasn't stopped yet :D
My guess is, it will add as many layers as your computer can handle without crashing.
There are many resources and websites that offer information about Photoshop layers. Some of these websites that offer information are Adobe, Photoshop Essentials and Photoshop Cafe.
color layers is simply color layers
Open the Layers window.
Yes, .psd files maintain the layers you create in Photoshop so that the next time you open your .psd file in Photoshop you can continue to work directly onto the layers.
One layer.
To store image parts.
To select all layers in photoshop for a PC open up your layers window (It is under window - layers), hold down the shift key and click on each layer that you want to group together or edit.
Flattening layers just merges all layers down into one. It reduces file size, but once the image is saved and Photoshop is closed, you will no longer be able to undo the change and edit those layers separately.
It grows in layers because of the amount of sunlight reaching each part of the forest. Since the emergents are the highest they receive the most amount of sunlight and hence the top layer. As the layers decrease so does the amount of sunlight and hence different heights of the rainforest.
Photoshop is an amazing program. I have been using it for many years and so far the only limit, as far as I am concerned, to the program is your imagination. I just finished a graphic project which contained 127 Layers. There really is no limit to the amount of layers you can use. You will need a decent computer to take full advantage of the program.
The highest rated imaging software is Photoshop
Don't know how it actually does it, but you can only save layered images in format that supports them. ie: photoshop native files .PSD or layered TIFFs. Jpegs can not be saved with layers.