$1.$ Using Layer $$Images$-1$ explain the different $4$ icons shown from left to right.

$2.$ Name the layer that has the part of the image that is closest to the viewer.

$3.$ What does the $$white box$$ on the layers represent? Why is it not on the bottom $2$ layers?

$4.$ Explain why the bottom layer has the icon of a $$lock$.$ Why don't any of the other layers have it$?$

$5.$ From left to right explain what the icons on the very bottom of the palette are?

$6.$ Why does the $$Layer $1$ have a blue color and not the other layers?

Extra credit:

$7.$ How do we know that this is a Photoshop file and not a JPG or TiFF?

$8.$ What is the $3$ letter extension for a Photoshop file?