True or false

1. By default Photoshop does not contain any image.
2. Layers are one of the most useful features in Photoshop.
Ctrl + Z shortcut keys are used to close the current image.

for no.2 true and for Ctrl-Z False

Explanation:

Ctrl-z is and "undo" shortcut

not really sure about no.1 though, sorry :(

imma come back to you?

there is no universally accepted definition of art. although commonly used to describe something of beauty, or a skill which produces an aesthetic result, there is no clear line in principle between (say) a unique piece of handmade sculpture, and a mass-produced but visually attractive item. we might say that art requires thought - some kind of creative impulse - but this raises more questions: for example, how much thought is required? if someone flings paint at a canvas, hoping by this action to create a work of art, does the result automatically constitute art?