Which keys help you to correct mistakes? ?

The scroll wheel on a computer mouse is used to scroll up and down on a webpage or document. By rolling the wheel up or down, you can quickly navigate through content without having to click and drag the scroll bar. It provides a convenient and efficient way to browse through long pages of text or images.

The scroll wheel on a mouse primarily serves two functions:

1. Scrolling:

- Vertical Scrolling: The main purpose of the scroll wheel is to enable vertical scrolling. By rotating the wheel forward (upwards), you can scroll up a page, document, or website. Rotating the wheel backward (downwards) scrolls down.
- Horizontal Scrolling: Some mouse wheels also support horizontal scrolling. This feature allows you to scroll left or right within a document or application window.

2. Zooming:

- Ctrl + Scroll: Holding down the Ctrl key while rotating the scroll wheel allows you to zoom in or out of webpages, documents, and images. Rotating the wheel upwards zooms in, while rotating it downwards zooms out.
- Dedicated Zoom Buttons: Some mouse models have dedicated zoom buttons located near the scroll wheel. These buttons can be customized to perform zoom in/out actions without the need to hold the Ctrl key.