What is inner shadow layer style in photoshop

*What is inner shadow layer style in photoshop ?
//This style gives the layer a recessed appearance & is used to add a shadow that just within the edges of the layer content.

What is Drop Shadow layer style in photoshop

*What is Drop Shadow layer style in photoshop ?
//This style is used to add a shadow that falls behind the contents on the layer.

What is layer effect in photoshop

*What is layer effect in photoshop ?
//In photoshop, you can apply various effects such as shadow, glow bevel to a layer. The appearance of a layer's content can be changed by these effects .

What is Content-Aware tool in Photoshop

*What is Content-Aware tool in Photoshop?
//The Content-Aware fill option is an amazing feature of photoshop .Using this tool , you can use quickly replace the content in a selection . This tool is very useful to get rid of an unwanted element & replace it with details that match the surrounding area.

What is magic want tool in photoshop,cs3, cs4, cs5,cs6,etc.

*What is magic want tool in photoshop,cs3, cs4, cs5,cs6,etc. ?
//This tool consist of the magic want tool & quick selection tool. you can use this tool to select any particular area of an image by just click on the desired color.

How many types of lasso tool in photoshop,cs3, cs4,cs5,cs6,etc

*How many types of lasso tool in photoshop,cs3, cs4,cs5,cs6,etc?
//lasso tools are three type :-
1.Lasso tool
2.polygonal lasso tool
3.magnetic lasso tool

What is lasso tool in Photoshop ,cs3, cs4,cs5,cs6,etc.

*What is lasso tool in Photoshop ,cs3, cs4,cs5,cs6,etc.?
//The lasso tool is used for drawing freehand selection border. Polygonal lasso tool is used for drawing straight-edged selection border.The magnetic lasso tool is used to the edges of the defined areas in the image. 

What is marquee tool in photoshop , cs3, cs4, cs5, cs6,etc.

*What is marquee tool in photoshop , cs3, cs4, cs5, cs6,etc.
//Marquee tools consist of rectangular, elliptical, single row & single column marquee tool.
//These "4" Marquee tools in photoshop's tool box.
1.Rectangular marquee tool,
2.Elliptical marquee tool,
3.Single row marquee tool,
4.single column marquee tool.