Why is my MacBook screen kind of "fuzzy"? (or blurry?

Macbook key things....?

• Ok, I forget what you call it when you do stuff like "Apple+c" and "Apple+v" and other stuff where you minimize anything on the screen with your keys. But, that's not my question. My question is: how do you take those screen shots with the keys? I totally forget ahaha I used to have a macbook but now I forget!!! The kind of screen shot where you can do the whole screen or click the mouse pad and like only do certain sizes. It is kind of hard to explain, but please try to help!! Thanks=]

• Answer:

  Take a picture of the whole screen ⌘-Shift-3 Take a picture of part of the screen ⌘-Shift-4, then drag to select the area you want in the picture. To cancel, press Escape. Take a picture of a window, a menu, the menu bar, or the Dock. Press ⌘-Shift-4, then press the Space bar. Move the pointer over the area you want so that it's highlighted, then click. To drag to select the area instead, press the Space bar again. To cancel, press Escape.